Frank Filmer was a missionary with the Churches of Christ on Pentecost Island, New Hebrides from 1908-1919. Frank became engaged to Rosa Jane Fountain and in 1908 left to work as a missionary for the Church of Christ. He returned to South Australia and on 6 April 1909 Rosa and Frank were married in the Grote Street Church of Christ, Adelaide, South Australia. They had five children, four of whom were born in the islands. In 1923 Rosa developed malaria and died. Frank returned with his young children to Australia and worked as a Minister for the Church of Christ in Kadina, South Australia. Frank married Vera Edna Woodward on 2 November 1925 and returned to work on Ambryn as a plantation manager, where he had two more children. In 1929 they returned to South Australia. Frank later bought a dairy farm in Meadows where he and his three sons worked.

Four diaries written by Frank Filmer, 1908-1918

Reel 1:
Diary 1, 29 Feb 1908-31 Dec 1909;
Diary 2, 1 Jan 1910-31 Dec 1912
Diary 3, 1 Jan 1913-31 Dec 1915
Diary 4, 1 Jan 1916-31 Dec 1918