I am a descendant of Joseph Johann Steinbacher, a son of Johannes Steinbacher and Maria Chauvin. Joseph Johann S_ was the father of 13 or 14 children. Of which was Johann Baptist Steinbacher who was born about 1834 and who was living with Eli Misho (in the 1860 PA Lycoming Co. Williasmport spelled Mishey). Eli Misho's wife Mary Carolina S_ was a daughter of Joseph Joahnn, and therefore a sister to Johann Baptist S_. Mary Carolina S_ was born in Kleinbittendorf, Saarbruchen, Rheinpreussen (Germany) on 11 Aug 1832. She had a brother Michael Aloeseus S_ born about 1846 and referred to as Michael in 1850 and as Lewis in 1860. And another brother Peter Ludwig S_ born about 1850 and found in 1860 and 1870 census as Louis S_.
Is this the John and Lewis Steinbacher that you are looking for?