In Memory of Mary Ann (O'Tool) Thies

Mary Ann (O'Tool) Thies
Mary Ann (O'Tool) Thies
Born: October 6, 1939
Died: January 18, 2023
Age: 83
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Mary Ann (O'Tool) Thies
October 6, 1939 - January 18, 2023
From: Arthur, IA

Mary Ann (O’Tool) Thies, age 83, of Arthur, Iowa, passed away on Wednesday, January 18, 2023, at the UnityPoint Health-Iowa Lutheran Hospital of Des Moines, Iowa.

A Mass of Christian Burial will be held at 10:30 a.m., on Tuesday, January 24, 2023, at the St. Martin Catholic Church of Odebolt, Iowa. Father Joseph Dillinger will officiate. Committal Services will follow in the St. Martin Catholic Cemetery of Odebolt, Iowa.

A Visitation will be held one-hour prior to the Mass from 9:30 a.m. to 10:30 a.m., with a Rosary at 9:15 a.m., on Tuesday, January 24, 2023, at the St. Martin Catholic Church of Odebolt, Iowa.

The Christensen-Van Houten Funeral Home of Odebolt, Iowa, is in charge of the funeral arrangements.  Condolences may be sent online at

Mary Ann (O’Tool) Thies was born on October 6, 1939, at the Loring Hospital in Sac City, Iowa, to June (Pfeiffer) and Clair O’Tool. She grew up in the Sac City area and graduated from Sac City High School with the class of 1958. In her youth, she was actively involved in 4-H and enjoyed showing cattle at the fair. 

Mary Ann married George Roeder and they were blessed with two sons, Dean and Paul. After 17 years, the couple separated. On March 28, 1980, Mary Ann married Loren Thies at the Little Brown Church in Nashua, Iowa. The couple made their home on the farm in rural Arthur, Iowa. 

In her early years, Mary Ann worked as a CNA at the nursing home in Sac City. In 1979 she began working at the Horn Memorial Hospital in Ida Grove, Iowa. She started as a CNA then transferred to the Housekeeping Department and ended her career working in the Supply Room. She retired on December 31, 2014, after 35 years of employment with Horn Memorial Hospital. 

Mary Ann loved spending time with her grandchildren and great-grandchildren as well as attending family events. She could be found outside tending to her flowers or sitting and watching her birds. She enjoyed baking and cooking, playing cards, going on trips, watching and supporting race car drivers, and having coffee with friends. 

Left to cherish her memory include her sons Dean (Dawn) Roeder of Arthur, IA and Paul (Sue) Roeder of Odebolt, IA; grandchildren and great-grandchildren; brothers Pat (Alice) O’Tool of Nora Springs, IA, Randy (Lisa) O’Tool of Mason City, IA and Donald (Angela) O’Tool of Clear Lake, IA; sisters Shirley Sosalla of Cedar Rapids, IA and Linda Olson of Mason City, IA; sisters-in-law Marilyn Dreesen of Peoria, IL, Thilieu Dreesen of Peoria, IL and Rebecca Gilles of Burnsville, MN; brothers-in-law and sisters-in-law Ronald (Zanet) Thies, Richard (Sherry) Thies, Rudy (Deanna) Thies, Joann Lund, Diane (Gary) Boerner, Linnea (Bill) Hopp, Mary (Bob) Jochims, and Lois (Don) Dunkin; several nieces, nephews, extended family and friends. 

She was preceded in death by her husband Loren Thies; parents Clair O’Tool and June (Pfeiffer) O’Tool; stepmother Catherine O’Tool; brothers Robert Dreesen, Jerry Dreesen and Ronald Dreesen; stepson Randy Thies; and grandson Cody Hammond.  



10:30 a.m., Tuesday,
January 24, 2023
St. Martin Catholic Church
Odebolt, Iowa


Father Joseph Dillinger


Nick Thies
Alan Kies
Joe Swalve
Jacob Luft
Joel Ziegmann
Terry Roeder
Keagan Scott
Logan Scott

Honorary Pallbearers
Mary Ann's Grandchildren & Great-Grandchildren
Nicole Thies


*One-Hour Prior to the Service*
9:30 a.m. to 10:30 a.m.
Tuesday, January 24, 2023
St. Martin Catholic Church
Odebolt, Iowa

Rosary Service at 9:15 a.m.


"Here I Am, Lord"
"In The Garden"
"On Eagle's Wings"
"You Raise Me Up" by Josh Groban


St. Martin Catholic Cemetery
Odebolt, Iowa


Tuesday, January 24, 2023 at 9:14 AM
“Dean and Paul, My sympathy to you and your families on your Moms passing.
Our thoughts and prayers are with you all. ”
- Mike McCaulley
Tuesday, January 24, 2023 at 9:14 AM
“My thoughts and prayers are with the family. I worked with Mary Ann many years ago at Horn Memorial. She worked in several areas of the hospital and always gave her best. She had a smile for everyone she worked with. God Bless”
- Dawn Bach
Tuesday, January 24, 2023 at 9:14 AM
“Sending condolences. on your loss. Just days ago, we spoke. always a smile and a chuckle. ”
- Julie Kollbaum
Monday, January 23, 2023 at 12:54 PM
“To the family , Im so sorry for your loss . you have all been in my thoughts and prayers”
- Tia Wilde
Monday, January 23, 2023 at 9:18 AM
“Deepest Sympathy to you and your families, for the lost of your Mother, Mary Ann. Always enjoyed talking to her when I seen her at HMH, she was a kind and caring person. Remember all the beautiful memories of her. Prayers and thoughts are with all of you. ”
- Ron and Louise Coyle
Monday, January 23, 2023 at 9:18 AM
“Dean and Paul and families, I was sorry to hear about the loss of your Mom. I first met her when I babysat you boys. She was such a nice lady and I liked running into her in Odebolt.”
- LuAnn Lunkenheimer Knobbe
Friday, January 20, 2023 at 9:28 AM
“So sorry for the loss of Mary Ann, but glad she is with Loren. A pleasure to work with her in the hospital supply room. Fond memories.”
- Mike Andrews
Friday, January 20, 2023 at 9:28 AM
“Dawn and Dean, Paul and Sue, I am so sorry for the passing of your mom. Had plenty of good times with her and Loren. Holding all of you in prayer during these days.”
- Trish Underberg
Friday, January 20, 2023 at 9:28 AM
“So sorry to hear of Mary Ann's passing. I always enjoyed talking to her whenever I ran into her. She was a special Lady and will be dearly missed! My thoughts and prayers are with the family and friends. Fly high Mary Ann!! ”
- Tonya Dupre
Friday, January 20, 2023 at 9:28 AM
“Many thoughts and prayers to all”
- Michele Boomgaarden
Thursday, January 19, 2023 at 8:09 PM
“So sorry for your loss.
- Tina (Ehrp) Frank
Thursday, January 19, 2023 at 3:33 PM
“Prayers for the family,sorry for your loss.”
- Sandy Lichter
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