Wallworth attended public school in Philadelphia and Upland. When he was fifteen, he entered his father's firm, dealers in cotton and wool waste. He was a road salesman for the firm for several years, and was later admitted to the firm. In 1914, he took over the business and ran it himself.[1] The firm was known as J. Wallworth & Sons. He resided in Haddonfield, New Jersey.[2]
Wallworth was a member of the Camden County Republican Executive Committee. In 1918, he was elected to the New Jersey General Assembly as a Republican, serving as one of the three representatives for Camden County. He served in the Assembly in 1919[3] and 1920.[4] In 1920, he was elected to the New Jersey Senate, representing Camden County. He served in the Senate in 1921,[5] 1922,[6] and 1923. He was chosen President of the Senate in 1923.[7]
In 1921, Wallworth sold his firm and became a realtor, working in real estate development in Camden County. He maintained offices in Camden and Ocean City. After he finished his term in the Senate, he became chairman of the Republican County Committee.[1] He later became chairman of the Camden County Park Commission.[8]