New England Families

The most likely person to be "Oscar Cowan" in Rockland, Maine, is George Oscar Abbott, who lived in the area all of his life, and is father of Charles O Abbott, who elsewhere is identified as the master on a barge. Charles' wife, the former Ruth Clark, is also 'married, living apart from spouse' in Vinalhaven in 1940.

1940 Census, Rockland, Knox County, Maine
renting for $10 at 7 Pink St

Oscar Cowan 58, head, divorced, 6 years of school, born in Maine, parents also, lived in Rockland in 1935, is working at public work, 30 hours a week [but scratched out, I think because the column was not for public work], 200 weeks out of work at the time [but scratched out and code V3 entered instead], occupation: laborer at a brook project, worked 52 weeks last year for $528

Oliver Abbott, 31, son, married but apart from mate, 6 years of school, born in Maine, unknown where he lived in 1935, is not working, is seeking work, 2 weeks out of work, occupation: seaman on a barge, worked 52 weeks last year for $600

Also in the household is a housekeeper and her son. There is no indication of who provided the information for this household.