Arthur's other older brother was Leslie Theodore Raymo (1877-1932) or Lester as he was later known. He lived with his wife Edith M. Smith in Yspilanti, Michigan and later Norvell. For a time, he was employed as a machinist, and later was a odd jobs laborer.
Leslie and Edith had three children:
- Howard Lester Raymo, born 1898, died 1967. Howard married Grace (surname unknown).
- Emma B. Raymo, born 1901. Emma married Elmer Ring in 1918.
- Ethel B. Raymo, born 1906. Ethel married Ellis W. McCabe in 1923.