Katie Heilmair was 32 and employed as a Domestic in Youngstown, Ohio when she filed a Declaration of Intention to become a Naturalized Citizen in 1918. She said she had immigrated from Munchen, Germany and arrived in New York on October 10, 1903. She stated she was born in Schwaben, Germany on October 18, 1884.

The 1920 Federal Census of the St. Francis Hospital lists "Katherine Hailmyer," 35, as a Pupil Nurse. She was born in Germany and immigrated in 1903.

A news article in the Pittsburgh Press, dated May 21, 1922, published the names of the graduates of the St. Francis Hospital Class of 1922. This graduate's name as "Catharine Marie Heilmair."

On January 12, 1923, Katie Heilmair, aka Katherine Marie Heilmair, Graduate Nurse, filed a Petition for Naturalization. She was living at Penn Avenue, Pittsburgh at the time.

From a list of Pennsylvania Registered Nurses, 1940-1941, published by the Pennsylvania State Board of Nurse Examiners: "Katherine M. Heilmair, 38 Middlesex Rd., Buffalo, N. Y."

Katherine Heilmair, born on October 18, 1884, died in July 1968. Her Social Security Card was issued New York, and her last residence was New Canaan, Fairfield County, Connecticut.