Can I create a registration form for Class Reunion for people to use Paypal to register?

Yes, of course you can your own registration form and use PayPal as your payment method for checkout.

You can check our free registration templates here  so you can get some ideas. Once you have the form, please follow this guide https://www.jotform.com/help/391-How-to-Integrate-Form-with-Paypal-Standard- on how you can add PayPal to your form.

Let us know if you have any questions or if you need further assistance. 

Thanks.  I think I have created a form and the "PRODUCT" will be registration fee.  Where do I get a SUBMIT button to have them submit payment to Paypal?

Submit buttons are automatically added to forms, but if it is missing, it can be added again through the form elements menu:

The submit function redirects to PayPal when there is a PayPal field set up in the form:

https://www.jotform.com/help/391-How-to-Integrate-Form-with-Paypal-Standard-