When Josephine Millier was born on 24 October 1882, in Owen Sound, Grey, Ontario, Canada, her father, John James Millier, was 38 and her mother, Maria Johnson, was 32. She married Charles Caldwell on 15 April 1908, in Owen Sound, Grey, Ontario, Canada. They were the parents of at least 2 sons and 3 daughters. She lived in Calumet, Houghton, Michigan, United States in 1910 and Grey, Ontario, Canada in 1911. She died on 24 December 1934, in Toronto, York, Ontario, Canada, at the age of 52, and was buried in Toronto, Ontario, Canada.