...from the Daily Oklahoman newspaper archives dated:

03/01/1968
CHANDLER
BROWN, Travis Lee, 64,
Spencer farmer. Services
Saturday. Curry of Chandler.

From this info stated, your kin was buried on Saturday, 03/02/1968.

...Chandler is small rural community east of Oklahoma City. I did a quick search for a funeral home for that name but did not come across one. Maybe someone on the Lincoln County board, can tell you more about them and such for any records. I hope this helps you out some... :-))