Their nephew , Elias Howe , Jr. , may well have eclipsed them when he invented the lockstitch sewing machine .
William Howe of Spencer developed a wooden truss bridge named for him , and his brother , Tyler Howe , patented a spring bed .
Their nephew , Elias Howe , Jr. , may well have eclipsed them when Spencer invented the lockstitch sewing machine .
William Howe of Spencer developed a wooden truss bridge named for him , and his brother , Tyler Howe , patented a spring bed .