I only have two siblings listed for Catherine: Ann Margaret (1754-1827) and Elizabeth (1758-1759). Her uncle John Adam Treutlin was the first governor of Georgia.
Catherine married John Robert Tebeau and gave birth to at least five children: Ann Margaret (b. 1790), Frederic Edmund (b. 1792, my 3rd great grandfather), Mary (ABT b. 1794), Charles Watson (ABT b. 1976), and Susan (b. ABT 1796).
Catherine and John lived out their lives in Chatham County. John died October 12, 1807, in Savannah. Catherine lived another 29 years after the death of her husband. It doesn't appear that she remarried after John's death. I found several tax records for "Catherine Tebeau" in Chatham County up until 1836 on ancestry.com.
|Savannah Land and Tax Property Records, 1836, for Estate of John Tebeau, Catherine (Treutlin) Tebeau, and Frederic Tebeau (from ancestry.com)|
The above record shows the Estate of John Tebeau had one slave and lot and improvements at Carpenters Row for both John's estate and for Catherine,
Catherine died on December 16, 1836, in Savannah. They are both buried in the family vault in Colonial Park Cemetery in Savannah.
My descent from Catherine Treutlin:
Catherine Treutlin and John Robert Tebeau
Frederic Edmund Tebeau and Hulda Lewis
Catharine Tebeau and Philip Coleman Pendleton
Alexander Shaw Pendleton and Susan Parramore
Albert S. Pendleton Sr. and Helen Brown
Albert S. Pendleton Jr. and Leona Redles
Catherine Pendleton (me)
This post is part of the 52 Ancestors in 52 Weeks challenge by genealogist Amy Crow at No Story Too Small.
 George F. Jones. The Germans of Colonial Georgia 1733-1783. (Genealogical Publishing Co., Inc., Baltimore, 1986, p. 116).
 Georgia Salzburger Society. http://www.georgiasalzburgers.com/