My numbers came from multiple places, but this is a good start.
www.bradycampaign.org/facts/research/?page=hart98&menu=gvrwww.justfacts.com/gun_control.htmI realize that the brady bill page says something like 43% of homes with kids have guns and then the facts page states that there are 60-65 million gun owners. I thus figured that the number of 60 million should be about right considering that many gun owners no longer have children at home.
Many of these stats are just that. The same set of numbers can always be construed to make either side of the point look right, so please do some more digging and sharing. I am currently at work and my companies "websense" keeps me away from time consuming pages that have weapons in them (wise on their part. I actually do work).