August 9, 2018
Mercy Sister Diana Petz died July 9 at the age of 85. Born in Buffalo, New York, Sister Diana entered the Sisters of Mercy in 1950 with the religious name Sister Mary Lucia.
Sister Diana is a former member of the faculty at St. Gabriel and St. Peter schools, San Francisco; and St. Catherine School, Burlingame.
Later, after studying Spanish she served the Hispanic community at St. Athanasius Parish in Mountain View.
“She became a beloved leader as adviser, counselor and liturgy coordinator. She prepared families for baptism and marriage,” the sisters said.
Sister Diana retired to Marian Oaks Life Center in 2014 and spent the last seven months at Mercy Retirement and Care Center in Oakland.
A funeral Mass was celebrated July 19 with burial at Holy Cross Cemetery, Colma. Remembrances may be made to the Sisters of Mercy, 2300 Adeline Drive, Burlingame 94010.