Critique my invites, please! :D

shaylg

Mr. and Mrs. mydad'sfullname request the honour of your presenceat the marriage of their daughterShana LeatoFIfirstmiddleandlastnameson of ms. FImom'sfullnamemr. FIdad'sfullnameon Saturday, the twenty-eighth of Augusttwo thousand and tenat one o'clock in the afternoonSt. John Catholic Church123 abc street Mytownr, Maine

*fi's parents are divorced. 
should it be st. john, st. john's, saint john, or saint john's...so confused with this one!

  Cocktails, dinner & dancing
 

at three o'clock in the afternoon

Hilton Garden Inn

123 Road

Mytown, Maine
 Accommodations

Here I need to add something about who to contact about room rates. suggestions about wording? 



  the favour of your reply is requested by the first of AugustM_______________________________________________

_____Accept(s) with pleasure_____decline(s) with regret  please initial entree choice for each guest_____grilled halibut_____herb crusted beef tenderloin


We also would like to cut costs by not inviting young children. should i write "adult only reception" on the reception card, or just exclude them from the invitation?

thanks in advance for all your help!