Thanks for your feedback Susan.
For Kincaids, until something new pops up, all lines appear to be extinct from 100 AD to 1425 AD.? After 20 years and perhaps over 35 million ancestry dna tests (30 million as of 2020), the odds of something else popping up is probably getting low.
P.S. Kincaids have done fine since 1425 with a few significant new branches.