My 3rd great-grandmother Mary Dudley Williams (Baldwin line) died on this day in 1867 in Muscogee County, Georgia [1, 2]. She was buried at Linwood Cemetery in Columbus, Muscogee, Georgia .
Note: Mary's grave marker says her date of death was 13 May 1857. The Bible record date of 15 May 1867 has been chosen as authoritative, especially given that she was married in late 1857 and all of her children were born after this date.
My 3rd great-grandfather Calvin Townsend Covell (Erickson line) died on this day in 1879 in Ridgebury, Bradford, Pennsylvania [1, 2]. He was buried at Ashland Cemetery, Wellsburg, Chemung, New York .
My 4th great-grandmother Rebecca B. Pierce (Erickson line, and mother of Calvin above) was born on this day in 1780 in Lanesborough, Berkshire, Massachusetts .
 Tice, Joyce M., Tri-Counties Genealogy and History. Cemetery Record for Ashland Cemetery, Chemung County, Page 4 (Comstock to Dean).
 Probate Court Records of Bradford County, Pennsylvania. Affidavit of Death in the probate records for Calvin Townsend Covell.