Don

The AncestryDNA test is an autosomal DNA test. Autosomal DNA is best used for verifying connections within the last five or six generations. Your potential link with Devon is too far back in time for autosomal DNA to be of any use.

However, you can test this hypothesis through Y-chromosome testing. I don't currently have anyone in the Devon DNA Project with the Rogers surname so you would have to actively recruit someone with a documented line from Devon for comparison purposes. To qualify for the Devon Project you need to have documentary evidence of a link with Devon. However, there is a large Rogers DNA Project at Family Tree DNA that you could join:

https://www.familytreedna.com/groups/rogers-sc-ga-al-tx-nm-ca/about

FTDNA currently have a sale on so it's a good time to get a Y-DNA test done.

Don't forget too that you can also do the free autosomal DNA transfer program to add your results to the FTDNA Family Finder database:

https://www.familytreedna.com/learn/imports/transfer-autosomal-ancestry/family-tree-dna-family-finder-transfer-program/

If you've tested on the AncestryDNA v2 chip you won't get the speculative matches so there is some merit in doing a completely new Family Finder test at FTDNA rather than doing the transfer.