Descendants of Pastor Ludwig Krause

I am a grandson of Pastor Ludwig Krause, born 18 April 1858 in Poland and migrated to Australia in 1899 from Germany. I believe he had two brothers at least one of whom migrated to the USA. His eldest brother was a blacksmith in Poland. All we have is a photo of one brother taken by a photographer named Gardnier in Springfield Illinois. His family did try to contact my grandmother by letter around 1960 but unfortunately she did not respond. My daughter and I are trying to compile a family history but have very little information re my grandfathers side. I know this is not much information but maybe the above jogs someones memory and they can assist. I can email a copy of ther photo if it is of any assistance

Thanks in anticipation that someone can help.