My husband's family also claims to be related to Commodore Perry. Unfortunately, no one seems to know how other than he's probably a great uncle. The farthest ancestor on that side is John F. Perry born in 1808, New York City, NY, died in 1894 in Aurora IL. He married Christine McCumber Dec. 21, 1843 in New York. Their children were James F. Perry born 1845, Samuel Henry or Henry Samuel (my husband's ancestor) born 1846, Seymour D. Perry born 1852, Andrew born 1855, Kate born 1859 and Harvey born 1862.I'd appreciate knowing if there's any connection.