Harold, as he was called, was the son of the late Irving Hill Losee, DDS, and Catherine Georgina Mackey. He had one sister, Catherine "Kate" Mackey Losee. Harold had several cousins on his mother's side of the family. He was married twice, both marriages ending in divorce. He married his first wife, Eleanor Muller, in 1944. He married his second wife Rosa Maria Aust in 1959. They had a son, John Aust Losee. Harold was the grandfather of John's son Christopher Adam Losee. Harold worked as a civilian for the US Army, retiring in the 1970's. He was once a member of the choir at St. Peter's Episcopal church in Albany. In his younger days, he played tennis, fished, hunted, and skated. He also was adept at playing the harmonica. Harold's true love was for animals. He owned several dogs and cats in his lifetime, and took care of many stray cats in his later years, as well as feeding the birds and squirrels.
Harold is not actually buried at the Albany Rural Cemetery - at his request, he was cremated, and his ashes were scattered in the Hudson River. He is however memorialized on the back of his mother and sisters monument at the Albany Rural Cemetery.