Thank you amondg and shelleyesq. I found Sarah Brown's death on findagrave and on online trees. I gather that she married Robert H. Brown in 1871 in Toronto, Ontario but haven't found the actual record. Hoping it would name parents. Haven't found a death certificate. I have been searching findagrave but no parents there. Haven't found a way to contact Sebring Cemetery. I did find the marriage of an Ettie Brown, born Hartsfield, PA, parents Robert and Sarah, who married Laurence B. LaHaye in 1905 in Owen Sound, Ontario, son of Peter LaHaye and Mary Jane Lennox who I believe is Sarah's sister. So Sarah's parents should be Andrew Lennox and Sarah Ewing but trying to prove that.
Robert remarried in 1890 to Richie Huber.