Sources of calcium not in dairy?

Quick Google search yielded 1000s of results.

Here's a good link

From this link:

Nondairy Foods with Calcium

Getting enough calcium can be a especially hard if your kids are allergic to milk. These nondairy foods can be good choices for kids with milk allergies who need calcium:

• Salmon
• Tofu
• Rhubarb
• Sardines
• Collard greens
• Spinach
• Turnip greens
• Okra
• White beans
• Baked beans
• Broccoli
• Peas
• Brussel sprouts
• Sesame seeds
• Bok choy
• Almonds

Calcium-fortified Foods

In addition to the large number of calcium rich foods that are naturally found, like milk and cheese, a lot of foods are now fortified with calcium. These can be especially good choices if your child doesn't like to drink milk.

• Calcium-fortified breakfast cereal, including General Mills Whole Grain Total, Total Raisin Bran, Total Cranberry Crunch, and Total Honey Clusters, all of which have 100% DV of calcium per serving!
• Calcium-fortified orange juice
• Calcium-fortified soy milk
• SunnyD with Calcium (most SunnyD products don't have calcium, so look for the one that does if your child needs extra calcium in his diet)
• Instant oatmeal
• Calcium-fortified bread or English muffins
• Calcium-fortified drink mixes such as Pediasure or Carnation Instant Breakfast
• Other calcium-fortified breakfast cereals, including General Mills Golden Grahams (350 mg)