Thomas and Elmer are brothers, sons of Ira Oakland and Isabelle Thuestad.
Elmer Arthur Oakland, 1881-1962, married Sena Bjerge.
Thomas Lewis Oakland, 1863-1918, married Mary Ann Sanderson (my great-grandparents).
Mary Ann Sanderson’s sister, Isabele, married Andrew Richolson. (Mary Ann also had a sister Josephine (Adelaide J.), who married Richol Richolson.)
In this faded cabinet card, I especially like the cat and dog. My guess for the time frame is the 1910s – that would put Thomas Oakland in his 40s. Do you think that’s correct?