Hunny, Here's some information for you:
The Kansas Center is composed of a network of foster homes in the midwest. The main center is located near Topeka, Kansas.
Siamese Cat Rescue of Kansas
212 E. Main Street
Meriden, KS 66512
I also have Siamese Cats who are cautious when children move quickly. However, I would have no fear of keeping a baby here. I hope it will be possible for you to keep Aspen. When I have a house full of children, my cats just hide until they're gone, but when there's one quiet child, they both come around to meet the child. My prayer is that you will find a way to keep him and get him a little kitten friend.
I assume this is your first baby. (babies!) I had four, and have always kept cats. Taking great care if you have to change the litter is the most important thing I can advise. Having an electric Litter Maid would save you loads of work, also. (Get the BIG one) Other than that, is there a fear that the cat will harm the baby? I have never experienced that or even a cat getting into a crib. I don't know your exact fear, but I hope all works out well. Keep in touch with us, please, and let us know about your twins too! God bless.