Seeking help tracking down my great-grandfather. Not sure of a birthplace, perhaps Colchester. He was a Captain in the Army and was killed by a sniper in France during WWI. (September 1918) He was married to a woman named Florence Agnes Henry and they had four children, (Ernest, Alex, Edith and Muriel). All but Muriel came to America and settled in St. Louis, Missouri. Anyone have any leads? Thanks so much!