My 2x great grandfather is Wilhelm Bowinkelmann. He first shows on the English BMD index as marrying in Q4 1860. He next appears on the 1861 census as born in Germany, and on the 1881 census his birthplace is listed as Westphalia, Germany.
I have had a good look around and cannot find much reference to the Bowinkelmann name, but I have noticed a fair number of Winkelmann in Westphalia.
Does anyone know if these names are connected, and if so what is the significance of the 'Bo' at the start?