After their initial success, the brothers were joined by their siblings. And Paul and their mother Barbara.
Bob's twin brother Richard was the road manager. When the group expanded to its full family membership by 1967, the six siblings ranged in age from 8 to 19. Joined by their mother, Barbara Cowsill (née Russell), the group was the inspiration for the 1970s television show.
The Cowsills Group Signed Album Cover JSA COA" is in sale since Friday, May 12, 2017. This item is in the category "Entertainment Memorabilia\Autographs-Original\Music\Rock & Pop\Records". The seller is "historicsellsmemorabilia" and is located in Fort Lauderdale, Florida. This item can be shipped to United States, Canada, United Kingdom, Denmark, Romania, Slovakia, Bulgaria, Czech republic, Finland, Hungary, Latvia, Lithuania, Malta, Estonia, Australia, Greece, Portugal, Cyprus, Slovenia, Japan, China, Sweden, South Korea, Indonesia, Taiwan, South africa, Thailand, Belgium, France, Hong Kong, Ireland, Netherlands, Poland, Spain, Italy, Germany, Austria, Bahamas, Israel, Mexico, New Zealand, Philippines, Singapore, Switzerland, Norway, Saudi arabia, Ukraine, United arab emirates, Qatar, Kuwait, Bahrain, Croatia, Malaysia, Brazil, Chile, Colombia, Costa rica, Panama, Trinidad and tobago, Guatemala, Honduras, Jamaica, Bolivia, Ecuador, Sri lanka, Nicaragua, Peru, Pakistan, Paraguay, Viet nam, Uruguay, Antigua and barbuda, Aruba, Belize, Dominica, Grenada, Saint kitts and nevis, Saint lucia, Montserrat, Turks and caicos islands, Barbados, Bangladesh, Bermuda, Brunei darussalam, Egypt, French guiana, Guernsey, Gibraltar, Guadeloupe, Iceland, Jersey, Jordan, Cambodia, Cayman islands, Liechtenstein, Luxembourg, Monaco, Macao, Martinique, Maldives, Oman, Reunion.