Hello and Happy New Year – I have done some research regarding Langohrs from Haßloch, Pfalz, Baiern and Lachen Grossherzth, Baiern. The Johann Georg Langohr, brother to Johann Caspar Langohr, that I found was born 26 January 1798. The whole generation of Langohrs had Johann as the first name. Caspar emigrated to Albany, New York. I hope this helps and let me know if you need more information. Ed