Need to access my login to a site but iPhone only shows my wife's information.

I am responding on my Macbook Pro, but the problem occurs on my iPhone. I am trying to sign into a new app that my health care insurer has set up. It has a different name on my phone (Sydney), but it appears to be associated with the health insurer's site (anthem.com), so 1password proposes filling in the username and password with the information for the anthem site (which I think is correct.) However, the only option that 1password offers me on my phone is my wife's login. I have two entries for anthem ("Anthem Mark" and "Anthem Patti"). Both are in the same vault of the same account (since I manage all my wife's health care information and correspondence.) On my computer, I would normally expect to see both listed, and I could click on one or the other as appropriate. On the phone, I see only my wife's, and I have not been able to figure out how to get to my own. What am I missing?