David Drever was born 6th January 1859, son of David Drever and Mary Groat of Hammar. Barbara Groat was born 21st April 1861, daughter of Stewart Gullion Groat and Ann Drummond of Hill, one of the houses at Lakequoy. Mary Groat and Stewart Gullion Groat were siblings, children of Robert Groat and Elizabeth Harcus. David and Barbara were therefore first cousins, and they were married 20th January 1886 at Hammar. They had four children, all born in Kirkwall:
Barbara was a domestic servant in St. Ola before her marriage. In 1881 she was with the James Sinclair family at Glenorkney. In 1891 she and David were at Bridge Street, Close No. 9 with their (then) three children. David died 3rd October 1893, only age 34, at Kirkwall pier as a result of an accident. In 1901 Barbara was a charwoman living at 2 Thwart Close with David, James and Mary. John was not with the family. According to her sister Ann's immigration records, Barbara was living in Leith in 1911. In 1912 Barbara emigrated from Scotland through Ellis Island, New York with her daughter Mary, going to Los Angeles to join David and James who had preceded them. (Barbara's sister Ann had also immigrated to Los Angeles in 1911.) In 1920, David, James and their mother were all in Los Angeles. David was a clerk in a retail store and James was a salesman. Barbara died in Los Angeles 14th November 1944.