Wheaton engaged in mercantile pursuits and was a member of the
New York State Assembly in 1834. He was one of the commissioners to build a railroad between
Syracuse and
Utica, and was
postmaster of Pompey from 1840 to 1842. He was supervisor and city treasurer of Pompey and was elected as a
Democrat to the Twenty-eighth and Twenty-ninth Congresses, representing New York's 24th congressional district, holding office from March 4, 1843, to March 3, 1847. He was not a candidate for renomination in 1846 and that year moved to Syracuse. He was
mayor of Syracuse from 1851 to 1853 and city treasurer in 1857 and 1858. He also engaged in hardware, saddlery, and mercantile pursuits. == Personal life ==