He was not a penman by occupation. He was a proponent for equal rights for women (not his full time job, though)--equal pay for equal work--at the same time Susan B. Anthony was fighting for suffrage for women and promoting her anti-slavery and temperance movements, although it's not clear if they ever met. When asked about his signature, he said he first practiced it in the sheriff's office in 1835 and perfected it over the years until it became the most recognized signature of his day, both for its distinctiveness and ubiquity. He wrote it with a special three-tined nib, which now resides in the Smithsonian Institute.
One of you is close to getting it right.