DeNooyer Chevrolet, a Small Michigan Town Car Dealership That Has Been in Business Since the 30's Or So, and I Recently Learned That My Great Grandfather Worked There for 30 Some Years Ago, Retired from It in the 1960's

the above was posted on Hemmings by Dan and he commented that it was taken in 1944, and he found a copy online, and it was then reposted by CarrosAntigos... where I found it. Tracking it down took about an hour, and a library in Michigan has a large collection of photos, this was among them.
From the upper right corner my Great Grandfather is the 2nd guy down from the top, above the guy with the tie

from a Flikr account

From a different Flikr account

and from another library http://heritage.portagelibrary.info/cdm/singleitem/collection/johntodd/id/57 I think the year is 1963