Genealogy / Finding information about ancestors born in Vilnius [6]

Hello,

I don't speak Polish, but I can read it a little. My great-grandfather was born in Vilnius in 1886 and lived there until he went away to medical school in another city. I know the names of both his parents, his wife, her father, his two brothers, and his father's occupation. I also know that his brother served in the Russian Imperial army and died in 1920. As far as I know, my g-grandfather was mostly Polish, maybe part German. His father was either the owner of a water pump or he was the govt. official overseeing it. I was told his family could've belonged to szlachta.

I already contacted one genealogy company in Poland, but they said they need more info. I've searched ancestry.com, but no records are available there. They didn't come to the U.S. Attached is the family photo. My g-grandfather's photo was added. I think it was taken when he was away at school. The family was Catholic.

Also, both my g-grandfather and his parents had patronymics. I think they might have added them because of the Russification policy at that time. Do you think they used their father's names or did they choose a random name? I don't know if I can get more info. Will this be enough? Thank you in advance.

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Genealogy / Where did most Germans live in Poland in the 19th century? [26]

I know this is a general question. It's just that I'm currently researching my family history. I know that my 3g-grandfather's wife was an ethnic German. I think they married between 1835 and 1855. I know for a fact that their son was a citizen of Warsaw. Does anyone know what were the most occupations for Germans?