Keller from Louisville KY

Looking for any info on Simon Keller. In the 1860 Kentucky Census he is listed as being 29 years of age with his wife Rosa (32). Also two children.
Christina age 2 and Catherine age 4 months.
I know that Catherine married a butcher in Louisville and she died in 1948.
Also I believe that he had another daughter Emma born
in December 1869 . This was my Grandmother. Simon also remarried before Emma was born so she was half sister to the other 2 girls.