This is long after your post, but in case you are still interested, I do have a connection to the Jenman family. My grandfather, Albert Brazier, was the 'double first cousin' of the children of Walter and Sarah Jenman, ie, his father, William Brazier, was Sarah A Brazier Jenman's brother, and his mother, Charlotte Jenman Brazier, was Walter Jenman's sister.
I do remember a bit about the family, since my family was close to Lora Jenman (and her mother Sarah) in the 1940's and 50's. 1 Ada Jenman married Ed(?) Hyde and they were living in 1951 near Fort Bragg, California. I know they had children, but I don't remember anything more. 2. Clara Jenman married Ralph Cook. They were living in Glendale CA in the mid 1950's. Their son (Ralph ?) lived near Sacramento. 3.Alfred Jenman died in 1963 in Los Angeles CA. He had a son , Alan, and 2 daughters. 4. I believe Walter Jenman, the son, was living in Ohio the late 1940's. 5. Harry Jenman died by drowning at a young age. I believe another post states that it was in 1920 in Detroit. 6 Lora Jenman lived in Cleveland and East Cleveland until her death in 1979.