On 30 Mar 1790 when William was 20, he married Olive Dayton (48294) , daughter of Capt. Michael Dayton (38221) (4 Jun 1722-22 Sep 1776) & Mehitabel Doolittle (30702) (28 Sep 1726-9 Jul 1813), in Litchfield, CT.488 Born on 6 Feb 1766 in Waterbury, CT.348 Olive died in Meredith, Delaware County, New York, on 4 Apr 1835; she was 69.488

William and Olive resided in Plymouth and Litchfield, CT, until 1820 when they moved to Meridth. Their children, first two born in Plymouth, others in Litchfield:
    i. Garrett Munson, b. 27 Jul 1791;
    ii. William Munson, b. 10 Jan 1793;
    iii. Levitt Munson, b. 4 Apr 1795;
    iv. Ransom Munson, b. 9 Jan 1797;
    v. Charles R. Munson, b. 8 Jan 1799;
    vi. Olive Munson, b. 21 Feb 1801;
    vii. Clarissa Munson, b. 18 Feb 1803;
    viii. Michael Dayton Munson, b. 15 Feb 1805;
    ix. George W. Munson, b. 9 May 1807, d. 1876 in Meridith, unmarried; and
    x. Lucius Munson, b. 27 Mar 1809, shoemaker in Morris, CT, m. Sally Orvis of Farmington, CT, no children.488