Hi, It has been many years since you posted this message. I do not know if my info will be of any use to you....
My gggg grandfather was Peter Friedrich Krause, born in 1814 in Denkhaus - germany. Two brothers which I know he had was Johann Friedrich (b. 1815) and Wilhelm (b. 1821), there was also a sister (I think) Friederike Wilhelmine (b. 1824 - Arnswalde, Germany/Prussia).
One of these brothers might well be the father of the Peter you seek, as my family are inundated with names such as Edward (the south african form of Eduardo) and Julius (male form of Julia)
My ggggg left germany in 1858 and immigrated to South AFrica on board the Ceasar Goddefrey.