I can't find my original comment on this project, and I have not yet entered any family details relating to my Gormann connection here in Australia [note different spelling@!!].However the following is a brief summary of my knowledge of the family. I don't know if this is of any value to your project, but forward it, in case!
Friedrich Wilhelm Gormann [1882-1964], born in Australia, married Isabella Mabel Kirk [1888-1941], a sister to my grandfather, William James Kirk.
His father was Johann Gormann [1845-1924], born in Turnow, Germany, moved to Australia with his family as a child between 1850-1853, married in 1864 in South Australia to Maria Proposch [1843-1931].
His father was Johann Gormann [1824-1858], born in Turnow Germany, married in Germany to Anna Bosson 1825-1909] in Germany. Had 6 children, first 3 born in Germany, the others in South Australia, so came to Australia between 18/2/1850 and 4/4/1853. Died 1858 in South Australia.
His father was Georg Gormann [1788 - ] born in Turnow, Germany, married in 1820 to Lisa Leback. Died in Germany.