Yes, that is grammatically correct.
Executive Officer, John Brown
George Brown - British Army officer - was born in 1790.
Samuel Brown - Royal Navy officer - was born in 1776.
George Brown - British Army officer - died in 1865.
Geoff Brown - RAAF officer - was born on 1958-08-01.
Samuel Brown - Royal Navy officer - died in 1852.
At Brown's is the correct one, because it means that at Brown' place or house, but we don't use the last words now. (it is very similar to the case of - at the chemist's- where we omit the word shop. )
The color brown in French is brun.
The Lavender Brown role has already been assigned to someone else.
Jerry Brown
shitStushki
Leslie Brown (Royal Air Force officer) was born in Pietermaritzburg, South Africa.