I am looking for information on my grandfather and grandmother.

My grandfather was born Luigi Magnabosco in November 1877 in either Cesuna or Roana, and married Luigia Martello approximately 1900-1901. He may have had a brother named Antonio, who remained in Cesuna.

Luigia had at least 2 brothers (Agostino & Costante), both of whom emigrated to the USA around 1890, and my grandfather followed in 1907, then brought his wife and 2 daughters (my aunts) within the next couple of years.

My grandmother died in Wyoming in about 1914, and my grandfather returned to Cesuna approximately 1921 with my father & uncle (who were born in the US).

He remarried and had one more son, Domenico, then died approximately 1936. My uncle Domenico eventually emigrated to Australia.

I have hit a brick wall, finding out any info at all on my grandparents. Would appreciate any help or guidance to which direction to go.