Red Hill in Team Uniform

This is one of two identical "real photo postcards" (RPPC) from Elsie's collection of a very handsome and athletic Red Hill.  Does anyone know what kind of uniform this is, i.e., basketball, track, etc.?  Would this photo have been taken during his playing or coaching years?  It's too bad such great-looking team logos are no longer politically correct...  

William Wallace "Red" Hill was b. 12 Sep 1903.  This particular RPPC photographic paper was manufactured by AZO between 1910 and 1930, according to Playle's Online Auction site, which has a great identification key for old photo postcards (see a previous post for the link).   

W. C. Hill Family Portrait, ca. 1912

This is not an original photo, but is a photo copy.  Elsie looks to be about 18 months old and A. J. about 4 years old, so I'm estimating the date to be from late 1912.  From left:  

Orvel Francis Hill, b. 10 Aug 1905, is around 7 years old.

"Papa Hill" (William Claborn "W. C." Hill) b. 28 Feb 1874, is around 38 years old.

Alton Jackson "A. J." Hill, b. 17 Sep 1908, is around 4 years old.

Elsie Lou Hill, b. 11 Apr 1911, is around 18 months old.

"Mama Hill" (Frances Myrtle "Frankie" Coggin Hill), b. 26 Mar 1880, is around 32 years old.

William Wallace "Red" Hill, b. 12 Sep 1903, is around 9 years old. 

Andrew Darwin Hill, b. 6 Jan 1902, is around 10 years old--almost 11. 

A. J., Lee, Papa Hill, "Red" in 1946

My mother wrote on the reverse, "A. J. Hill, Lee Smith (Elsie Lou Hill's husband), Papa Hill, 'Red' Hill."  This photo seems to be taken on the same day in 1946 as the photo with the notation that Sylvia was age 13, so...

Alton Jackson (A. J.) Hill Sr. (b. 17 Sep 1908) was around 38 years old.

Lee Matt Smith Sr. (b. 27 Sep 1904) was around 42 years old.

William Claborn "Willie" (W. C.) Hill (b. 28 Feb 1874) was 72 years old.

William Wallace "Red" Hill (b. 12 Sep 1903) was about 43 years old.

A. J., Red, Elsie Lou, Mama Hill & Papa Hill in 1946

Mother's caption on the reverse reads, "A. J. Hill, Red Hill, Elsie Hill Smith, Mama Hill, Papa Hill."  Was this photo taken at the farm?  What structure is that to the left?   Red and Papa Hill are enjoying their cigars.  A. J. and Papa Hill seem to be dressed for working.  Are Red and Elsie dressed for traveling?  What about the car?

Has anyone noticed the little girl (or boy...) under the trunk lid?