A Margaret Elizabeth Turnbull was christened at Christchurch Newcastle in 1878 (possibly making her about 15 in 1893 which is a 'normal age for confirmation) England Births and Christenings, 1538-1975," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:N6V6-78K : accessed 21 February 2016), Margaret Elizabeth Turnbull, 26 May 1878; citing Newcastle-upon-Tyne, Northumberland, England, reference item 5 p 246; FHL microfilm 1,469,115
She seems to have married a Thomas William Plews at the same church in 1899. "England Marriages, 1538–1973 ," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:NXHX-69Y : accessed 21 February 2016), Thomas William Plews and Margaret Elizabeth Turnbull, 17 Jun 1899; citing Christ Church, Newcastle-Upon-Tyne, Northumberland, England, reference Item 4, p187; FHL microfilm 1,469,116.