I have the information that you have. Rose, May's sister was born on 13 April 1905 and registered as Poplett, although Alfred and Caroline didn't marry until 1908. May married Edward Thomas Kirkham[born Kirkum] in 1902 but was 'taken in' and brought up by Albert George Smith and his wife, Fanny. Presumably because his purported father was here, in South Africa from 1899 to 1902!