Elizabeth Josephine Tack was the daughter of Theodore Edward Tack and Mary Agnes Cosgrave.  She was a sibling of painter Augustus Vincent Tack and other children of Theodore and Mary Tack.  In 1907 she married Richard Lawrence Gwinn, Jr. 

Richard Lawrence was age 40 and had one daughter from a previous marriage to Mary Agnes Roche.  Mary Agnes had died giving birth to her daughter Mary Agnes Gwinn (Bowe) in 1901.

Richard and Elizabeth Tack Gwinn had three daughters:

Elizabeth Cosgrave Gwinn was born in 1908 and died in 1966.

Martha Burns Gwinn (Casey) was born in 1910 and died in 1987, and

Nancy Anne Gwinn (Riboud) was born in 1911 and died in 1991.

Richard and Elizabeth Tack Gwinn’s second daughter Martha Burns Gwinn married John Dominic Casey on November 17, 1941, in Sacred Heart Catholic Church, Mt. Washington, Baltimore, MD, when she was 31 years old. He was 34 years of age.

Martha Gwinn and John Casey had two children: Theodore and Margaret.

Theodore Lawrence Casey, known as Ted, was born on February 6, 1948. He married Ann Weimeskirch.

Margaret Elizabeth Casey, known as Maggie, was born in Chicago, Illinois, on August 23, 1950. She married Mel Winer.

Theodore Lawrence Casey and Ann Weimeskirch had two children:

Kevin Casey was born on May 1, 1981.   Kevin married Toni Rae Kirsch November 7, 2014, at The Arboretum Club in Buffalo Grove, Illinois. They have one daughter: Mackenzie Ann Casey.

Emily Casey was born on May 12, 1985. Emily married Matthew Danielak October 19, 2013 in St. John Berchman’s Church in Chicago, Illinois.  Matthew is the son of Anthony and Madelyn Danielak.  Matthew and Emily Casey Danielak have two daughters: Madelyn Ann Danielak, born July 19, 2016 and Charlotte Gwinn Danielak, born March 6, 2020 .