"Hochzeitsgesellschaft nach der Trauung von Geschwister Büttner vor der Kirche in Rutenganyo." ("Wedding party in front of the church in Rutenganio after Brethren Büttners' wedding ceremony."). Frontal view of a church surrounded by trees. A group of twelve missionaries are lined up in front of it. In the background at the church: two Africans, dressed in white. Imprinted on the image: "1637.".; Karl Büttner (1876-unknown) was a missionary of the Herrnhuter Brüdergemeine in Unyamwezi/East Africa from 1903 to 1916. He served in Kitunda from 1903 to 1904 and from 1909 to 1913, in Kipembabwe from 1904 to 1909, in Sikonge in 1906, and in Tabora from 1913 until his internment in 1916. He returned to Germany in 1917. On the 13th of August in 1904 he married the teacher Martha Margarethe Büttner (1877-unknown), née Kohsmund, in Rutenganio.