were inactive. The main boys' clubs were Pow Pow and Ramal. At the time the clubs had a membership capacity; those with more prospective members than slots held lotteries that randomly determined who is permitted to join. Many clubs at the time had a tradition of hazing new members. Several clubs engaged in charitable events and fundraisers, and they also sponsored parties. Curtis wrote that "But what they do is really secondary, just as what fraternities and sororities do is secondary. It is the belonging that counts." Curtis added that the clubs "have an aura of exclusivity; kids can tell whether or not they're really wanted there." Due to the demographic changes in the 1970s, according to Curtis, interest in these social clubs decreased, with the two boys' clubs not having full membership rosters and two girls' clubs being inactive in 1975. Sister schools Dalian No. 24 High School in Dalian, People's Republic of China has been Lamar's sister school since 2000.International Students . Dalian No. 24 High School. Retrieved on September 13, 2009. Dalian is one of Houston's sister cities as designated by Sister Cities International. Inage Senior High School in Chiba City, Chiba Prefecture, Japan is also one of Lamar's sister schools. Chiba has been Houston's sister city through Sister Cities International since 1973. Feeder patterns Schools that feed into Lamar Elementary schools that feed into Lamar include: Baker (formerly Woodrow Wilson) MacGregor Poe River Oaks West University Wharton Gregory-Lincoln Education Center (partial) Horn (partial) Longfellow (partial) Memorial (partial) Roberts (partial) St. George Place (partial) (the rest of the zoning area indirectly feeds into Lamar) Thompson (partial) Mark Twain (partial) Middle schools that feed into Lamar include: Lanier Cullen (partial) Gregory-Lincoln Education Center (partial) Hogg (partial) Pershing (partial) As of 2008 many students matriculate from Pershing to Lamar. All pupils zoned to Pershing Middle School may apply to Pin Oak Middle School's regular program; therefore Pin Oak also feeds into Lamar High School. Schools that have Lamar as an option More schools feed into Lamar as all students zoned to Margaret Long Wisdom High School may instead choose to go to Lamar High School or Westside High School. Elementary schools that feed into Margaret Long Wisdom (and therefore feed into Lamar) include: Briargrove Benavidez Piney Point Rodriguez Braeburn (partial) Condit (partial) Cunningham (partial) Emerson (partial) St. George Place (partial) (the rest directly feeds into Lamar) Sutton (partial) Middle