Hello: I am also researching the Andrus family in St. Landry Parish, LA. It is very difficult because they all seem to use the same given names. I have three Benjamin Andruses in my tree (so far): 1-born between 1794 and 1804, 1 born 1769 (listed as Benjamin, Jr.), and 1 born 1735 (listed as Benjamin, Sr.). I would love to share information with you on this family..they are truly hard to get a grip on. I found out recently that MY Joseph Andrus passed away about 25 years before I thought he did and I have been collecting information on the wrong one! What a mess.
Please feel free to contact me, maybe two heads will be better than one.