1770 Military Service:1531 Jacob Wolff served in the Revolutionary War in Capt. Jos. Davis’ Robeson Company about 1777.

1779 Tax List, Robeson Township, Berks County, Pennsylvania:1563, (Jacob Wolf, p. 282) Jacob Wolf listed as owning 40 acres, 1 horse, 1 cow, and who was levied a tax of 180.

1780 Tax List, Robeson Township, Berks County, Pennsylvania:1564, (Jacob Wolf, p. 411) Jacob Wolf listed as owning 100 acres, 2 horses, 2 cows, and who was levied a tax of 15.16.0.

1781 Tax List, Robeson Township, Berks County, Pennsylvania:1565, (Jacob Wolff, p. 521) Jacob Wolff listed as owning no land, 2 horses, 2 cows, and who was levied a tax of 1.7.1.

1782 Birth of daughter Elizabeth:2763, p. 21. Recorded by the Rev. Traugott Frederick Illing, who served at Forest Lutheran Church (Plow) from 1781 to 1798: Elizabeth Wolff, dau. of Jacob and maria Wolff, of the Forest; b. Nov. 13, 1782, bap. Feb. 23, 1783; witnesses, Solomon and Regina Westley.

1784 Tax List, Robeson Township, Berks County, Pennsylvania:1566, (Jacob Wolf, p. 662) Jacob Wolf listed as owning 50 acres, 2 horses, and 2 cows.

1784 Birth of son Paul:2763, p. 27. Recorded by the Rev. Traugott Frederick Illing, who served at Forest Lutheran Church (Plow) from 1781 to 1798: Paul Wolf, s. of Jacob and Maria Wolf; b. July 31, 1784; bap. Oct. 28, 1784; witnesses, Henry Ulrich and Elizabeth Bitler.

1790 U.S. Census:97, p. 41.,1927
Pennsylvania, Berks County, Robeson Township
Head of Household •• Jacob Wolf
Males 16 and over •• 1 << Jacob
Males under 16 •• 2 << sons
Females •• 3 << wife and daughters

1794 Baptism of daughter Sara:1603, pt. 1, p. 110. On 17 October 1794 Jacob Wolff sponsored the baptism of his daughter Sara, born 11 July 1794, by the Rev. J. W. Boos.

1797 Baptism of son Johannes:1447, v. 1, p. 121. On 5 June 1797, Jacob Wolff sponsored the baptism of son Johannes, born 24 December 1796, at Schwarzwald Reformed Church.

1802 Baptism of daughter Catharina:1603, pt. 1, p. 198. On 3 August 1803, Jacob Wolff sponsored the baptism of daughter Catharina, born 5 December 1802, by the Rev. J. W. Boos.

1808 Will:2189 Jacob Wolf, Union Township, written 2 February 1808, filed 4 March 1808. Provided for wife Mary. To sons Jacob and Samuel "my plantation which I value at £845" and legacies as follows: to daughter Mary Ox £40, daughter Elizabeth Spotts £40, daughter Hannah Wolf £40, daughter Sarah £40, son John £40 when of age, and daughter Catharine Wolf £40 when of age. Mentioned that part of his land is in dispute with David Potts and Company. Executors: sons Jacob and Michael Westley. Witnesses: Marx Wolff and Daniel Spencer.