Info I have on David's siblings as follows:
Thomas, moved to Newfoundland and married. Family, but I have no info.
Dorcas married Mosed Ralph and moved to Newfoubndland. No further Info.
Claude (1885-1910) Never married.
Clara married (1) Erasmus Hefler; Children Francis, and George
Robert James "Jim" married (1) Ann Burdete; Children Elsie, and Owen; married (2) Bessie Goudie; Child Rhoda Ethel; married (3) Johanna Clarke; Children, Ralph, Michael, Beulah, Claude, and Garland Henry "Harry".
Frank, married (1) Winnie Fequet; Children Howard, Vernon, and Vera; married (2) Selina Williams; Child Columbine.
Michael Martin, son of Robert James and Johanna, can provide additional info on Thomas who moved to Newfoundland and probably also on Dorcas. I can provide you with his e-mail address in Kingston, Ontario.
Can you provide a copy, by e-mail, of the photo of David and his nephew?