Jim,
I'm not sure if anyone answered your question. On the listing for Greenwood Cemetery (White township, Indiana county, Pennsylvania) available by going to the Indiana co. page at usgenweb.org, and then clicking on Treasures of the past, then White township, it lists Christain(sic)W Keller born 1 Apr 1836 died 12 Aug 1915, located in the mausoleum.

'Indiana Weekly Messinger', Indiana, PA 18 Aug 1915 says:
W. C. KELLER (sic)
W. C. Keller, of Coral, died on August 12 from heart failure, aged 79 years, 4 months and 12 days. He is survived by his wife and one sister, Mrs. Isaac Griffith, of Homer City. Funeral services were held in the Lutheran chapel at Coral on Monday, August 16, at 1:30 p. m. in charge of Rev. J. W. Shaffer, of Homer City, and the body was placed in the new mausoleum in Greenwood cemetery at Indiana.

FYI- Homer City is in Center township- census records of 1910 show Mary Griffith b. abt 1845, 1900 show Mary b. Jan 1843 - married to Isaac.

p.s. If we hope for snow on Christmas, are we going to get way too much, like we did last year?