Gathered from the web .. minimal validation at this point.
1.01 Pieter Lassingh, b. 1610; d. 1682. (source)
Child of Pieter and ??:
2.01 Pieter Pieterse Lassingh, son of Pieter Lassingh, b. 1635 in Hoestein, Germany; immigrated 1659 to New Amsterdam, traveled onboard the ship De Vergulde Bever; m. 1672 in New York, NY, to Catharina Willemse Hoffmeyer, dau. of Willem and Maria Tilton Hoffmeyer, she b. 1657 in Albany, NY, and d. 1714 in Poughkeepsie, NY; d. 7 Feb 1709 in Poughkeepsie, NY, USA.
Children of Pieter and Catharina:
3.01 Pieter Laserik Lossing, son of Pieter Pieterse and Catharina Willemse Hoffmeyer Lassingh, b. 1673 in Albany, NY; m. 28 Oct 1704 in Claverack, Albany Co., NY, to Cordelia Rees, dau. of Willem Andries and Catrina Janse Rees, she b. 6 May 1688 in Coxsackie, Greene Co., NY, and d. 1722 Coxsackie, Greene Co., NY; d. 1765 in Beekman, Dutchess Co., NY.
Children of Pieter and Cordelia:
3.02 Johannes Pietersz Lossing, son of Pieter Pieterse and Catharina Willemse Hoffmeyer Lassingh, b. 1684 in Kingston, NY; m. Margareta Jansen van Orden; d. 15 May 1715.
Children of Johannes and Margareta:
4.01 Andreas Pietersz Lossing, son of Pieter Laserik Lossing, b. 16 April 1712 in Dutchess Co., NY. m. Catharina Lossing (first cousins)
5.01 Pieter Andrew Lossing, son of Andreas Pietersz Lossing,
6.01 Pieter P. (Lossing) Lawson, son of Pieter Andrew Lossing,
7.01 John P. Lawson, son of Pieter P. Lawson, b. 4 May 1793 in Poughkeepsie, Dutchess Co., NY; m. 9 Dec 1817 at 1st Presbyterian Church, New Hamburg, Dutchess Co., NY, to Mariah Cope, she b. 4 Feb 1803, she d. 1866; d. 1827 in Columbus, OH.
Children of John and Mariah:
8.01 Samuel Lawson, son of John P. and Mariah Cope Lawson, b. 5 Sept 1818 in Dutchess Co., NY; m. 30 Dec 1839 in Clark Co. OH, to Catharine Miles, she b. 4 Oct 1825 in MD, she d. 10 Dec 1904 in Highland, Highland Co., OH; d. 5 Sept 1882 in Clinton Co., OH.
Children of Samuel and Catharine: