Thanks for the additional information on these Rigsbys.
I know about the Wesley Rigsby you mention as a brother of your Nannie. I had his wife's name as Willie, so thanks for the correction. A quick check of the 1930 census shows Wesley and Beatrice with a daughter Willie; that must be where I got the other name.
The Frank who had son Bobbie is indeed another brother of your Nannie. I have his wife's name as Verna Gay, but I didn't know of any children for them.
I'll add the R-numbers for these two deaths. One of these days I'm going to post additions and corrections for all these vital records.