Here's the latest info from Peggy G re the Ryder family history, per Aunt Ann, with input from Aunts Helen & Lu:

Martin Ryder & Margaret Walsh probably had 14 - 16 children some of whom died at birth or infancy. 8 girls and 3 boys immigrated to America. Here are the ones we know of:

Michael, Susan,  Cecilia, Katherine, Anthony,  Margaret, Delia, Ellen (Ellie), Thomas, & Agnes.

And their progress (not set in stone, but probalities -- correct them with comments, where you know the accurate information, or can flesh out more for us):

Michael (m. Katherine Leyden in Milwaukee, WI). He was 25 when he immigrated, probably coming to USA with sister Susan. He paid for the passage of brother Thomas, sister Agnes, and his parents to USA. Was an East Chicago, IN councilman; tavernier (Todd Av, East Chicago). Comments about Michael from Peggy G: 'my Mom (Margaret Ryder West) said when she was four or five years old, she would go to the tavern and sing on stage, & was showered with money from the patrons.... I believe he was the father of Earl & Thomas Ryder. Earl m. Irma, no children. Lived on Magoun Av, East Chicago. When I met him I couldn't get over how much he looked like Uncle Mart (Martin Francis Ryder). He was such a pleasant man. I believe his wife was an invalid. He was a superintendent at Inland Steel Co., and was very well respected in the industry. He had set up the business procedure system for the company. His bother Tom was m. to ?Margaret Lauber. Also worked at Inland (#2 Blast Furnace, I think). They were at our home several times when Pauline (Long) was in town. I have an email address for his son Thomas Ryder - tmgaryder@msn.com. However, I'm not sure he's still alive. He had one other son who was in Martyna's (Ryder Belessis) class at Bishop Noll (hs), and a daughter .. I'm trying to get more info on them.'

Susan (m. Curry) lived in CA. 2 or 3 children: Susan Curry, with 3 daughters; Mary (or Marnie) m. Rodman (2 sons, Earl & Tom -> 5 daughters); Agatha m. Berry; Mercedes m. Withers (div.), then m. Newton (Info from Pauline Long or Margaret Lauber Ryder). Peggy G relates: 'Mom told the story of Susan, who had married a very rich man, was enroute to CA in her chauffeured car, stopped at Grandpa's home in E. Chicago. Sent the chauffeur to ask that Tom come out to the car. He answered that if she didn't care to come into his humble home, then she could proceed to CA. She chose to drive on and never looked back!!! Hmmm, and we wonder why we are soooo stubborn.'

Cecilia m. Schmidt. No info.

Katherine (Cecilia's twin) died in infancy.

Anthony (Tony) remained a bachelor and lived with sister Margaret (Mag).

Margaret m. Burke, who died young. Son, Thomas, a bachelor. Then m. Long; two sons: Anthony 'Yank' -- m. Ruth. No children. Joseph 'Shorty' Burke (?Long). 3rd marriage to William Veccio (?Vecchio). One daughter -- Pauline, who went by surname Long. Margaret had no known grandchildren. Peggy: 'Tom, I'm sure you remember Pauline (yes, I do - lovely). She looked something like Aunt Mary (Murry), but with long black hair and dark blue eyes. She looked very Italian and always had her hair pulled severely back. She lived in CA and when she came to town Mom would always have a party for her and her brother Shorty Burke (Long) whom I believe was married. Pauline & Shorty were full of life and there was always a lot of laughter when all our aunts and uncles and their families would come for her visits.'

Delia m. Michael Joyce. No children. Peggy: 'One my hs math teachers... I believe his name was James Joyce, along with his brother ?John Joyce, who was an E. Chicago politician, always said we were "shirt tail" relatives.'

Ellen (Ellie) m. Gordon. Div., children raised by relatives. Girls and one son, John, Japanese POW during WWII. Retired in AZ. Peggy: 'Both my parents talked about John. Dad met him right before he (John) enlisted. Mom said he was one of the handsomest men she had ever known... before the war. When he returned, it broke their hearts, because he was a "shell" of the man they knew. He married his nurse who cared for him for his entire life (?Ruth).'

Thomas m. Honore (?Mary) O'Toole in Chicago. Peggy: 'My mom & aunts always said that Grandma had to accompany her (older) sister Nellie to the USA, and Nellie had promised their parents that she would always watch over and take care of Nora. Nellie's main purpose (?) in coming here was supposedly to marry a wealthy man. He two oldest brothers had come to America, but did not like it and returned to Ireland. Nellie married a man of means, Uncle Tony Prendergast (Tom: my vague recollection of Aunt Nellie was of an elegant and charming woman... Peg: She had a sweet and lovely nature, and reminded me of my sister Jackie), and was actively looking for a similar man for Nora. However, Grandma met Tom Ryder at an Irish dance, fell in love, and married soon after. He was about 33, she several years (?10) younger. I never knew Grandpa to not have a twinkle in his eyes and a smile on his face when he spoke of Grandma. He also had such great respect for her... first came the Blessed Mother, then Grandma. And no other woman in Grandpa's eyes was finer that his wife, including his daughters whom he dearly loved. I do believe they were both truly in love. True to her word, Aunt Nellie always watched over Nora, and throughout the Depression made sure that our moms and Uncle Mart were taken care of. And Grandpa worked any type of job to raise his family. Peg: You are right, Tom, about Grandpa being a fireman. I believe it was during the early part of the century. The fire truck was horse-drawn. He was thrown off the truck and injured while riding to a fire, while holding onto a side rail and coming around a corner. Grandpa was born on Christmas day. They had seven children - one son and seven younger daughters. 

Agnes m. Jack Dalton, then widowed with 5 young daughters: Mary (m. Russell Royal) - no children, she died young. Beatrice (m. Connor) - 3 sons. Margaret (m. 'Bud' Correll) - one son. Susan (m. Tom Connor - sister Bea's brother-in-law) - ?children. Peggy: 'When I was young (you're still young, my dear), I met a really nice looking and very nice man at Castaways (local hangout & bowling alley). He asked me out, I gave him my number, asked him to call early in the week. That night Mom was playing solitaire at the kitchen table (which she us did until we were all in bed). I told her about the really nice guy... She said he could be my cousin, Bea's son, as they were both from Portage, IN. When he called, it turned out he was, and that ended that!'

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The children and descendants of Thomas & Honore Ryder:

Martin Francis Ryder m. Anna K. RePinec (Repinak) (8 children): 1) Martyna Ann (m. Peter Bellessis) - 4 children: Christine (daughter Naithya); Alexander (m. Lynn, 2 sons - Ryan & Nikolas); Peter; William, engaged to Shannon. 2) Thomas Andrew (d. age 21, motorcycle accident). 3) Martin A. died of polio (1st fatality in Lake County, IN) at age 8. (Tom: I recall that none of us could attend Marty's funeral, because no one had any idea of the contagion of the disease; my mother told me that Uncle Martin was so bereft that he wanted to throw himself into the grave with his little son). 4) Kathrynne Adaire (m. Bob Champion - 3 daughters: Charmayne, Cassandra, & Cammille). Div., married Reno Sarti. Charmayne (m. Kevin Shaw - children Kathrynne, Kevin); Cassandra (m. Al Machuca - children Devon, Cody, Elijah, Isaiah). Cammille (m. John Freyek - son John, div.; m. Bob Matthias - children Luke, Anne, & Adaire Martyna). 5) Patryce Adria (m. Marvin Edward Smith, May 20, 1967 - children Melanie, Adam, Aimee, Dominic). Melanie (m. Darrin Page - sons Jayden & Jase); Adam (m. Tammy - son Skylar & daughter Sydney). Dominic (m. Angie - children Hunter & Lilly). 6) Lawrence Anthony (m. Carol Babinec - children Megan, Martin, Caitlyn). Megan m. Angel Fonseca (daughter Annaya). 7) Denyse Adria (m. George Buck - children George, Amanda, Mark). George m. Lisa - children Preston & Orianna. Amanda m. Chris Williams - son Ethan. Mark m. Holly - daughter Lilly. 8) Randall Austin m. Jill - children Tara & Logan.

Helen Ryder m. William Pfeifer.

Margaret Cecilia Ryder m. John Harlow West (6 children - Jacqueline Honore, Marguerite (Peggy) Diane, Robert Martin, Mary Lynn, Pamela Dawn). 1) Jackie m. Frank Raymond Kowal (div.) - 4 children: Frankie Marie (m. Dan Sims - daughter Leslie Michelle); Michael (fianced Shannon); Laurel Adaire (m. Gary Ottomanelli - daughters Frankie Marie & Olivia); Shannon (m. Jaime - sons Jacob & Ryan). 2) Peggy m. Loren Gardner (deceased) - children: Robert "Brent" (m. Johanna Young - son Max William, daughter Molly Elizabeth), Jacqueline Kathleen, Henry "Loren". 3) Bob m. Barbara Davies (div.) 4) Mary Lynn m. Timothy Flynn (div.) 5) Dick died at age 11 from a cerebral hemorrhage due to a ruptured aneurysm. 6) Pamela Dawn and Dan Martinez.

Lucille Lorraine m. Roy Thon.

Mary Claire m. Max Murry (4 children - 1) Marcia, 2) Maureen Susan, 3) Madonna, and 4) George Franklin). Madonna m. Lou Scatena - 2 daughters. George Franklin (GF) (m. Leadon - children Annabelle & Jack).

Dorothy Louise (m. Robert Allen Lansen (5 children - Thomas Allen, Gregory Mark, Lorraine Louise, Carol Marie, Douglas Robert). 1) Thomas m. Noella Putignano (div.) - 3 children: Honore (Nora) (m. Peter Tobin - daughter Ella Rose), Thomas Robert, Daniel Austin. Re-married Tara Meenan. All live in NY 2) Greg m. Linda Rendazzo (div.) (daughter - Dessa); re-married 3 times; wife Vicki. Lives in Futaleufu, Chile. 3) Lori lives in Albequerque, NM. 4) Carol lives in BelAir, CA. 5) Doug d. at age 30 of consequences of developmental challenges.

Therese m. James Devany. Son Gary m. Mary (div.) - daughters Tracie & Christie.

Everyone please feel free to chime in here with corrections, additions, refinements.