Well, I have 2 children 3.5 years and 10 months, and I have camped with both.
#1 thing of course is Bug repellent (lowest deet compound for infants) and sunscreen.
#2 for each day you'll want to make sure you have shorts/t-shorts but also track suits or jeans because you never know what the temperature will be, and evenings in the wilderness can get quite cool unexpectedly

Warn pj's are a must too!
# 3 Obviously if bottle feeding you'll need to pack sterile water (previously boiled) and your formula. Also any other feeding needs your child may have. (our 10 month old now eats cut up versions of what we eat) So if required baby food, or snacks (eg. cheerio's travel well

#4 For us, i always found it easiest (if you have the room) to pack a playpen to bring, as it provides an enclosed place for sleeping Just like a crib, also it is great during the day for baby to play in with a few toys and you can purchase at most discount/dollar stores a mesquito net to go over the top! .
P.s. The large dining tents are great, you can all relax as a family in the outdoors, without the bugs!