Have you tried Ancestry.com? If you're near a National Archives facility, you can go there to search Ancestry and other genealogical subscription sites like Fold3 which has digitized military records. You can find out more about the sites available for free, and available for free at National Archives facilities here: Online Databases - use for free at the National Archives
Best of luck!
thanks for your help. My Mom did this research using professional
genealogists like yourself over a ten year period about a generation ago
now, so I am fairly confident Jacob existed. I just find it out I can't
find info on him in your archives.
Like I said, based on this info and other things the DAR saw fit to admit
my Mom in the 70s I think..... so curious.
Did your mom keep a copy of what was sent to the DAR? I conducted a search of the Revolutionary War listings on Ancestry.com and there is a "Jacob Tack" on the "Roster of Soldiers from North Carolina in the American Revolution" compiled by the North Carolina Daughters of the American Revolution in 1932. It is possible that he is the one you are seeking. Please keep in mind that spelling mistakes can occur during transcription or at the time the original roster was produced.