Word Usage – How to Introduce Yourself: ‘Myself [Name]’ vs. ‘I’m [Name]’

It depends on how formal/informal the situation, and by extension, the email is.

For a formal setting, you could use:

Hi [...]

Please find attached the requested pictures and information, for your reference. Please let me know if anything else is needed/required.

Thank you, [...]

For an informal setting, anything simpler goes:

Dear [...],

Here are the pictures and links you were looking for.

Look up some in-depth strategies on writing formal letters here. It might help.

If Julie's children are also invited, you could use Julie Watson and family – In the U.S., at least, that's usually interpreted as "immediately family," i.e., spouse and children.

If it's only the couple you want to invite, you could go with "Mr. and Mrs. Julie Watson." The traditionalists might bristle at that one, but those who are fed up with traditional (and some would say sexist) roles might appreciate your progressive solution.

Note: I looked through a four-page guide on this, and couldn't find my suggested answer there, but I was a little surprised at that.

If you don't feel comfortable going “outside the box,” you have one solution left: Next time you see Julie, ask her what her husband's name is. That goes along with the advice found at this website:

What if I don’t know the person’s name?
Whenever possible, take the time to find out the recipient’s name.

If you're embarrassed that you've forgotten her husband's name, you could maybe tell her that you're just checking the spellings of everyone's names.