Hi there, Heather!
Thanks for stopping by the Disney Parks Moms Panel with your wonderful question. You and your little one are going to create such magical memories together at the Happiest Place on Earth!
You will notice that many parents with babies are able to enjoy a variety of
attractions in both Disneyland Park and Disney California Adventure Park. It is truly a destination where the entire family can have fun together. I'm happy to let you know that any attraction without a posted height requirement is safe for even the littlest infant Guests. You can view these attractions online or search for them on the Disneyland app. All of the attractions you listed above are perfect to take a baby along. My son once even fell asleep in my arms while riding Pirates of the Caribbean as an infant! He also enjoyed riding Dumbo the Flying Elephant, Disneyland Railroad, Casey Jr. Circus Train, and Jungle Cruise. Make sure you take plenty of pictures of all these "firsts" for your son!
Since you will have a baby on your trip, I wanted to let you know about the fantastic
Baby Care Centers located in both Disneyland Park and Disney California Adventure Park. These locations offer semi-private spaces to feed or change little ones. You can also purchase a variety of infant essentials here if you happen to forget anything like diapers or wipes. On return trips, your son can continue to use these centers when he is potty-training as well.
I hope this helps. Have a Zip-a-Dee-Doo-Day day!
-Jennifer