I don't know about Clarissa, but maybe she had a sister named Pamela? Pamela Olcott (b: 1768 in Manchester, Conn. d: 3 Oct 1844) married Paul Geer Simons (b: 18 Jul 1762 in Manchester. d: 18 Sep 1836). Pamela's parents were Samuel Olcott and Susannah Burnham. Samuel's parents were Josiah Olcott (b: 2 Mar 1703 in Harfield, Conn. d: 8 Feb 1785 in Hatrford, Conn.) and Penelope Beckwith (b: 1705 in Lyme, Conn. d: 12 Sep 1776 in Hartford, Conn.) Josiah's parents were Thomas Olcott Jr. (b: 1671 in Hartfold, Conn. d: 30 Nov 1715 in Stratford, Conn.) and Sarah Foote (b: 25 Feb 1673 in Weatherfield, Conn. d: 24 Jul 1756 - same place she was born) Sarah's parents were Nathaniel Foote III (b: 10 Jan 1647 in Weathersfield. d: 12 Jan 1703 in Weathersfield) and Margaret Bliss (b: 12 Nov 1649 in Springfield Mass. d: 3 Apr 1745 in New London, Conn.) Margaret's parents were Nathaniel Bliss (b: 1622 in Devonshire, England. married 20 Nov 1646 in Springfield, MA. d: 8 Nov 1654 in Springfield) and Catherine Chapin (b: 1627 in Devonshire, England. d: 4 Feb 1712 in Springfield). Catherine's parents were Samuel Chapin (b: 8 Oct 1598 in Devonshire. d: 11 Nov 1675 in Springfield, MA.) and Cicelly Penny (b: 12 Feb 1601 in Devonshire, Eng. d: 8 Feb 1683 in Springfield, MA.) Samuel's parents were John Chapin (b: 30 Jun 1566 in Devonshire. d: 3 Jun 1600 in Devonshire.) and Phillipa Easton (b: unknown d: unknown) John Chapin's parents were Roger Chapyn (name change. b: 1534 in Devonshire. d: 9 Sep 1590 in Cornwall, England.) and Margery Urdde (b: 1538 in Devonshire. d: 9 Sep 1590. -- died on the same day as husband. I don't know why or how. I wonder if something happened to them.) Phillipa Easton's parents were Henry Easton (b: 1543 in Devonshire. d: 3 Mar 1630) and Joan Cliffee (b: 1545 in Devonshire. d: unknown.) Henry Easton's parents were Thomas Easton (b: about 1517 in Devonshire. d: unknown) and Elizabeth Weston (b: about 1518 in Devonshire. d: unknown). Joan Cliffee's parents were John Cleffe/Clieffe (name changes. b: Jan 1525 in Devonshire. d: unknown) and Mrs. John Clieffe (name unknown. b: 1529 in Devonshire. d: unknown)
I really hope you appreciate it. It took me forever to type. This is everything that I have on this family.