I don't know if this Mary is who you're looking for or not. The details aren't the same as above.
1920 Galena, Cherokee, KS
Mary Angleburger, b. TN, 66, widow, white
Richard Lowoy, AA, b. MS, 65, widower, watchman zinc oxide plant
Mary L. G. Angleberger
Born: 1854, TN
Died: 4 Jan 1931, Galena, Cherokee, KS
Buried: Galena Cemetery, Galena, Cherokee County, KS
which includes her obit and info about her that doesn't match what you have. Successful Searching!
(3rd attempt to post reply)