Can you help?

Is this sentence grammatical?

Her father and herself were waiting for the letter.
Hi vsuresh,

She and her father were...

"Herself" isn't the right pronoun for the subject of a sentence. It's an object, when "she" is both the subect and the object.

She mentally kicked herself for her stupid remark.

She bought one pie for her friend and one for herself.
Students: We have free audio pronunciation exercises.

Her father and she were waiting for the letter (to come).

You and I were waiting for the letter (to come).

Thanks to both of you.