Hello Sherry Ann,
hello Della,
I'm in the Diesel-line and live in Germany. Since last year I resaerched the Diesel's from Johann Andreas (Andrew) Diesel. He's related to me. He emigrated to US in 1836.
Emil Edward Diesel is a son of Philipp Gottlieb Diesel and a grandson of Andrew.
Perhaps I can help you with further informations. Please contact me in the board or email me kunz-st.wendel@t-online.de