I know this does not match the dates, but the only birth I could find is for Lorenzo:

Birth and baptism 9/11/1811
Santa Maria di Monticelli , Cogorno, Chiavari, Genova, Italy
Father Giovanni Batista Canepa, Mother Theresa Centenaro.

This is a LDS IGI submitted Tree, but Theresa is interesting.

When Joseph Canepa was christened 12/12/1862, a sponsor was Michael Bizeanti ( ? Bregazzi ) , but I could not find any trace of this Michael on the IOM.

David Dwyer