Jamms is a boy name. It last appeared in U.S. Social Security records in 1960. Jamms first appears in the data in 1960 and reached its peak in 1960 (7 births). The chart below shows how the name has risen and fallen over time.
How popular is Jamms? (U.S. births per year)
U.S. births per year, 1960–1960 · hover or tap for the count and national rank · source: U.S. Social Security Administration