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1931 Doris 2023

Doris K. O'Brien

September 24, 1931 — October 6, 2023

Sioux City

  Doris K. O’Brien of Sioux City passed away peacefully on Oct. 6, 2023 after a relatively short illness. 

  Her life will be remembered on Thursday, October 12th at Meyer Brothers Colonial Chapel. Family will be present from 4 to 7:30 p.m. with a prayer service at 6:30. Her welcome into Heaven will be celebrated at St. Michael Catholic Church on Friday, October 13th, at 10:30 a.m. Those wishing to join the service virtually may do so by following this link: Online condolences may be directed to

  Doris was born to Alfred and Mary Reisch on Sept. 24, 1931 in Le Mars, Iowa. She recently celebrated her 92nd birthday. While attending St. Joseph's nursing school in Sioux City, she met Jack O’Brien, whom she married in 1953. She practiced her nursing profession in local hospitals until 1958 before focusing on raising their five children. Doris, who possessed a loving and nurturing soul, made the O’Brien household a place where all were welcome. After years of devotion to family, she returned to nursing at the Siouxland Blood Bank in 1980, where she worked until retirement.

  An avid bridge player, spirited Hawkeye fan and friend to all; she will be profoundly missed. She and her family are forever grateful to her caregivers and friends at Sunrise Retirement Community. She is survived by 5 children, 15 grandchildren and 4 great-grandchildren. Her children are Michael (Marilee) O’Brien of Dakota Dunes, SD; Sharon (David) Bufo of Los Osos, CA.; David (Stacey) O’Brien of West Okoboji, IA; John (Brenda) O’Brien of Stafford, VA; and Mary (Shane) Hartnett of Dakota Dunes, SD. Her grandchildren are Gayle (Sean), AJ, Samara (Kyle), Jackson (Nicole), Cassandra (Erik), Ansley, Jacklyn, Elise, Jensen, Tyler, Beverly, Olivia, Shawn, Nikki and Kelli. Her great-grandchildren are Emerie, Leon, Eloise and Rosalind. She is also grieved by two sisters, Faye Vittito and Lynne (Jim) Katt; and sisters- and brother-in-law, Anne Reisch, Mary O’Brien, Ray and Shiuvaun Nasypany; and numerous nieces and nephews.

  She will be welcomed home by her husband John T. (Jack) O’Brien; infant son, Paul; her parents Alfred and Mary Reisch and parents-in-law Mike and Myrtle O’Brien; her brother Don Reisch; sisters and brothers in law, Al and Patti Aiken, Don and Ruth O’Brien, Mike and Gladys O’Brien, Nella O'Brien (passed 10/11/2023), B.J. O’Brien , Phil O’Brien, and Tom O’Brien.

  Please consider following Doris’s example of being a lifelong blood donor. In lieu of flowers, send donations to the Carmalite Nuns or to Trinity Heights. 

To order memorial trees or send flowers to the family in memory of Doris K. O'Brien, please visit our flower store.

Service Schedule

Past Services


Thursday, October 12, 2023

4:00 - 7:30 pm (Central time)

Meyer Brothers Colonial Chapel

3220 Stone Park Blvd, Sioux City, IA 51104

Enter your phone number above to have directions sent via text. Standard text messaging rates apply.


Friday, October 13, 2023

10:30 - 11:30 am (Central time)

Holy Cross Parish, St. Michael Catholic Church

2223 Indian Hills Dr, Sioux City, IA 51104

Enter your phone number above to have directions sent via text. Standard text messaging rates apply.


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