What term to use to refer to a late husband's last name after marrying again and taking the new husband's name?

Solution 1:

Hopefully an etiquette expert will write a definitive answer here. But in the meantime, I'll give you a couple of ideas. Let's say you used to be Jane Smith, and now you married Mr. López.

Jane (Smith) López

Jane Smith López

Jane López (formerly Jane Smith)

Jane López (widow of Smith) - this one is inspired by the way one does this in Spanish

Jane Smith, now Jane López

Also, some people hyphenate.

Solution 2:

You might say

Elaine Hornung (formerly Wintonyk; née Rae).

Or, in the case of my mother,

Mrs Monica Mann (also known as Dr Zealley); formerly Lloyd, née Zealley