She is possibly this Anna NEFF:
Baptism:  26 Jul 1719, Catholic Church, Bieringen, Black Forest Dist., Wuerttemberg
Father:  Hans Georg NEFF
Mother:  Ursula CAMER

  1.  Elisabetha TRUFFNER, bap. 17 Jun 1741; d. 1 Aug 1795
  2.  Florianus TRUFFNER [male], bap. 7 May 1742
  3.  Johannes TRUFNER, bap. 23 Jul 1743
  4.  Regina TRUFFNER, bap. 7 Sep 1745
  5.  Elisabetha TRUFNER, bap. 1 Mar 1747
  6.  Anna Maria TRUFNER, bap. 6 Apr 1748; d. 6 Jan 1824
  7.  Maria TRUFFNER, bap. 10 Nov 1749; d. 6 Jan 1814
  8.  Johannes TRUFNER, bap. 4 May 1751
  9.  Wunibald / Wunibaldus / Willibald TRUFNER / TRUFFNER, bap. 2 Mar 1753
10.  Anna TRUFNER, bap. 10 Jan 1755
11.  Walburga TRUFNER, bap. 1 May 1756
12.  Dominus TRUFNER, bap. 21 Aug 1757
13.  Cosmas TRUFNER, bap. 2 Jul 1760; d. 7 Aug 1842
14.  Anna TRUFFNER, bap. 4 Sep 1763

1.  LDS.  Family Search: Internet Genealogy Service:  IGI - International Genealogical Index (online at FamilySearch.org).

Joannes TRUFFNER Christening: 10 Feb 1709, Katholisch, Bieringen, Schwarzwaldkreis, Wuerttemberg Father: Johannes TRUFFNER; Mother: Chatarina STAHL Source: Kirchenbuch, 1701-1878. Katholische Kirche Bieringen (OA. Horb)

Johann TRUFFNER Birth: 10 Feb 1708, Bieringen, Wuerttemberg; Death: 02 Jun 1777 Father: Johnnes TRUFFNER; Mother: Katherine STAHL Marriage: 11 Sep 1740, Bieringen, Wuerttemberg Source: patron submission

Anna NEFF Christening: 26 Jul 1719, Katholisch, Bieringen, Schwarzwaldkreis, Wuerttemberg Father: Hanss Joerg NEFF; Mother: Ursula CAMER Source: Kirchenbuch, 1701-1878. Katholische Kirche Bieringen (OA. Horb)

Johannes TRUFFNER Spouse: Anna NEFF Marriage: 11 Sep 1740, Katholisch, Bieringen, Schwarzwaldkreis, Wuerttemberg Source: Kirchenbuch, 1701-1878. Katholische Kirche Bieringen (OA. Horb)

Location: Katholisch, Bieringen, Schwarzwaldkreis, Wuerttemberg Elisabetha TRUFFNER; Christening: 17 Jun 1741; Death: 01 Aug 1795 Florianus TRUFFNER [Male]; Christening: 07 May 1742 Joannes TRUFNER; Christening: 23 Jul 1743 Regina TRUFFNER; Christening: 07 Sep 1745 Elisabetha TRUFNER; Christening: 01 Mar 1747 Anna Maria TRUFFNER; Christening: 06 Apr 1748 Maria TRUFFNER; Christening: 10 Nov 1749; Death: 06 Jan 1814 Joannes TRUFNER; Christening: 04 May 1751 Wunibald/Wunibaldus/Willibald TRUFNER/TRUFFNER; Christening: 02 Mar 1753 Anna TRUFNER; Christening: 10 Jan 1755 Walburga TRUFNER; Christening: 01 May 1756 Dominus TRUFNER; Christening: 21 Aug 1757 Cosmas TRUFNER; Christening: 02 Jul 1760; Death: 07 Aug 1842 Anna TRUFFNER; Christening: 04 Sep 1763 Father: Joannes TRUFNER / Johannes TRUFFNER; Mother: Anna NEFF/NEF Source: Kirchenbuch, 1701-1878. Katholische Kirche Bieringen (OA. Horb)

Anna Maria TRUFNER Birth: 10 Nov 1749, Bieringen, Schwarzwaldkeif (sic), Germany Death: 06 Jan 1824, Bieringen, Schwarzwaldkeif (sic), Germany Father: Johann TRUFNER; Mother: Maria Ann NEFF Source: patron submission

Anna Marie TRUFFNER Birth: 20 Nov 1749, Bieringen, Wuerttemberg Death: 06 Jan 1824 Father: Johann TRUFFNER; Mother: Maria Anna NEFF Marriage: 30 Jan 1775, Bieringen, Wuerttemberg Spouse: Joseph STRAUB Source: patron submission