The Rhode-Island Almanack, For the Year of our Lord Christ, 1821: Being the first after Bissextile, or Leap Year, and the forty-fifth of American Independence, which commenced July 4, 1776.
Bickerstaff, Isaac. The Rhode-Island Almanack, For the Year of our Lord Christ, 1821. Providence (R.I.): Printed and Sold by Brown & Danforth, near the South-East Corner of the Market-House, [1820].