. ▁" C ong ress man " ▁refers ▁to ▁any ▁U . S . ▁sen ator ▁or ▁representative . ▁A ▁range / site ▁listing , ▁e . g . ▁R 3 1 / S 4 4 , ▁ ▁after ▁a ▁name ▁gives ▁the ▁location ▁of ▁the ▁grave ▁or ▁c en ot aph ▁according ▁to ▁the ▁c emetery ' s ▁location ▁system . ▁ ▁Cong r essional ▁c en ot ap hs ▁▁ ▁William ▁Thor nt on ▁( 1 7 5 9 – 1 8 2 8 ), ▁first ▁Arch itect ▁of ▁the ▁Capit ol , ▁is ▁the ▁only ▁person ▁who ▁did ▁not ▁serve ▁as ▁a ▁con gress man ▁to ▁be ▁hon ored ▁with ▁one ▁of ▁the ▁c en ot ap hs ▁designed ▁by ▁Benjamin ▁Henry ▁Lat ro be ▁at ▁the ▁Cong r essional ▁C emetery . ▁ ▁John ▁Qu in cy ▁Adams ▁( 1 7 6 7 – 1 8 4 8 ), ▁President , ▁Senator , ▁and ▁Represent ative ▁— ▁Massachusetts , ▁c en ot aph ▁only ▁and ▁was ▁inter red ▁in ▁the ▁Public ▁V ault ▁in ▁ 1 8 4 8 . ▁R 5 4 / S 1 0 1 . ▁James ▁C . ▁Al v ord , ▁( 1 8 0 8 – 1 8 3 9 ), ▁Represent ative ▁— ▁Massachusetts , ▁c en ot aph ▁only . ▁R 5 7 / S 1 4 1 . ▁S ime on ▁H . ▁Anderson , ▁( 1 8 0 2 – 1 8 4 0 ), ▁Represent ative ▁— ▁Kentucky