Dr. Henry ‘Harry’ Ardagh Kingsmill was born in London, Ontario on the 2nd of July, 1867, the day after Canada’s Confederation. He was the 4th of 6 children born to Thomas Frazer Kingsmill and the former Anne Ardagh. His siblings were; Mary, Annie, Alice, Thomas and Arthur. His father, Thomas was a dry goods merchant on Dundas Street in London. As a youth, Dr. Kingsmill worked in the family’s mercantile business.
Dr. Kingsmill attended the University of Western Ontario in London graduating M.D. in 1895. He furthered his medical studies in England, before setting up his practice in London. He is known to have tended to patients in the Highgate area.
Dr. Kingsmill’s brother Arthur had set up a dry goods business on King Street in Chatham, Ontario opposite the market. He had married Jane Alexina ‘Jennie’ King of Chatham on July 1st, 1891 and Dr. Kingsmill was his best man. (Arthur died in 1898 at the age of 28 of blood poisoning., leaving a wife and 3 children.)
Dr. Kingsmill married Inez Ethelyn Smith on the 28th of May, 1902 in Ionia, Michigan. Mrs. Kingsmill was born in September of 1870 in Carthage, Missouri. She was the only child of Sidney and Ann Smith. According to the 1880 census, the Smith family resided in Evergreen, Michigan. By 1900 they lived at 736 W. Lincoln Ave., in Ionia, Michigan. Mrs. Kingsmill’s occupation was listed as a musician on their marriage record.
Dr. and Mrs. Kingsmill had 2 children. Sidney Ardagh Kingsmill was born on the 26th of March 1903 and a daughter Eleanor Alice Kingsmill was born on the 15th of September, 1906 (She died of diphtheria on the 15th of July, 1909). When the children were born, the Kingsmill family resided at 219 Queens Avenue in London.
Dr. Kingsmill enlisted in World War I on the 10th of April, 1918 in London. Dr. Kingsmill was already attached as an active militia member with the 1st Hussars. He served as the 7th Regimental Medical Doctor and Combatant Officer.
Dr. Kingsmill died on the 11th of February,1920 in London, Ontario and he was buried at Woodland Cemetery. His death was attributed to his service in the 1st World War. He had attained the rank of Major.