I am also tracing back through the Fuglers to Richard David Fugler, born in 1762 (place unknown) and died in 1827. Your Richard may be on my chart as the son of John Jeremiah Fugler of Madison County in 1850 census. Their youngest son, Bank was born in 1847, was 3 at the time of the 1850 census and is the root of my family tree. I have that branch but no others, but I have the name Richard David Fugler and dates 1762-1827 from a family Bible. Would love to hear from you.