You can contribute to either your own RRSP, or a Spousal RRSP that you have set up, or both.

You cannot contribute directly ( ie receive a deduction for) someone elses RRSP, either a regular or spousal.

Please answer my question above, as your response is not clear to me.

I created the spousal for her. CRA claims she can contribute to it. Your answer appears to say no, but I am not sure.

I did attempt to answer your question succinctly, but it does appear CRA is correct, both spouses CAN contribute to the same Spousal RRSP. There some constraints to be aware of, and there are several sources on-line that explain the pros and cons.
The general benefit would be to have a single Spousal RRSP to manage.
Each spouse deduction limit applies, regardless of how many RRSP accounts you may have, either individual or spousal.

This was the confirmation I was looking for.......Thanks so much!!!!!