▁and ▁ 8 . 0 % ▁of ▁the ▁population ▁were ▁below ▁the ▁pover ty ▁line , ▁including ▁ 7 . 6 % ▁of ▁those ▁under ▁age ▁ 1 8 ▁and ▁ 1 . 0 % ▁of ▁those ▁age ▁ 6 5 ▁or ▁over . ▁ ▁References ▁ ▁Further ▁reading ▁ ▁External ▁links ▁ ▁Town ▁of ▁War wick ▁official ▁website ▁War wick ▁Historical ▁Society ▁Franklin ▁County ▁History ▁ ▁Category : T own s ▁in ▁Franklin ▁County , ▁Massachusetts ▁Category : Spring field ▁metropol itan ▁area , ▁Massachusetts ▁Category : T own s ▁in ▁Massachusetts ▁Category : W ar wick , ▁Massachusetts <0x0A> </s> ▁The ▁White ▁Bl uff ▁Form ation ▁is ▁a ▁mar l , ▁sand , ▁and ▁cl ay ▁ge olog ic ▁formation ▁in ▁Ark ansas ▁that ▁is ▁part ▁of ▁the ▁Jackson ▁Group . ▁It ▁pres erves ▁foss ils ▁d ating ▁back ▁to ▁the ▁Pale ogene ▁period , ▁specifically ▁the ▁E oc ene . ▁ ▁Description ▁The ▁White ▁Bl uff ▁Form ation ▁is ▁composed ▁of ▁three ▁members : ▁the ▁Past oria ▁Sand ▁Member , ▁the ▁Can ey ▁Point ▁Mar l ▁Member , ▁and ▁the ▁R ison ▁Clay ▁Member . ▁The ▁Past oria ▁Sand ▁is ▁a ▁cl ay ey ▁sand ▁containing ▁gla u con ite ▁and ▁m oll us ca ▁foss ils . ▁The ▁Can ey ▁Point ▁Mar l ▁is ▁a ▁ch alk y ▁cl ay ▁with ▁gla u con ite ▁and ▁various ▁in verte br ate ▁foss ils . ▁The ▁R ison ▁Clay ▁is ▁a ▁cl ay ▁with ▁inter bed ded ▁sil ts ▁containing