Retirement tax questions

No.  IRA's are *Individual* Retirement  Accounts.   Each IRA owner has their own RMD based on the owners age starting in the year that the IRA owner turned 70 1/2.   The spouses age has nothing to do with it.   (RMD's are not required for Roth IRAs).
**Disclaimer: This post is for discussion purposes only and is NOT tax advice. The author takes no responsibility for the accuracy of any information in this post.**