There are several options to alter these formal wordings.
1.) Instead of using 'request your presence', the words 'would like' can be substituted for an informal style.
2.) Instead of the the written out dates, you can substitute:
on Saturday, June 6th 2002
at 4.30pm
Divorced/Single Parents
(If hosted by both parents, consider the blow example as simple subsitutions for one set of parents, and just switch out the original set of parents, leaving the remaining parents as they are in the above examples. )
1.)If your parents are single, just list them individually.
2.)If your parents are divorced, and have not remarried:
Mr. Luis Jefferson
and
Mrs. Veronica Jefferson
3.) If one parent is remarried:
Mr. and Mrs. Luis Jefferson
and
Mrs. Veronica Jefferson
3.) If both parents are remarried:
Mr. Edgar Jones and Mr. Luis Jefferson
and
Ms. Veronica and Ms. Joann Jefferson-Simpson