On an invitation card...

> Mr and Mrs Jack Anderson 

works very well. It **includes** both Mr. Jack Anderson **and** his wife.

The beauty of this style is, I **need not** know Jack's wife's name. Here, Jack is my friend and *I know him.*

Personally, I'm quite terrible at names. So, what if I know Julie Watson but don't remember *her husband's name?* I don't want to sound ignorant and ask Julie about her husband's name (it's embarrassing too!).

I'm now stuck. While writing Mr & Mrs Jack Anderson **includes** his wife, is there **such** a way that I can write Julie's name and her husband is *included* automatically? 

What are the possible ways to address Julie and **include** her husband's name as well? 

Please mind that I don't want to include **all the members (i.e. her in-laws)**. Or else ***'Watsons''*** would have worked. 

Answers from all cultures are welcomed.