1940 United States Census at Ancestry.com (which can be searched for free, btw). I initially couldn't find cousin Addison Lincecum where I thought he should be. But when you have this surname, you get used to that quickly. I searched using the first name of his wife, Letha, in the appropriate county and state (Wharton, Texas) and found her with the surname of RINCERUM. The family consisted of Dr. A. L., Letha, and Barnett -- that's them!
One thing I don't remember knowing (does that ever happen to you?) about cousin Addison was his work as Postmaster in El Campo, TX. It was the occupation listed in the census. It seems he held the position for about twelve years.
|From Appointments of U.S. Postmasters, 1832-1971 at Ancestry.|