History of the Brazilian Chamber of Deputies
https://www.camara.leg.br/historia-e-arquivo/
Brazilian Senate Archive
https://www12.senado.leg.br/institucional/arquivo
History of the US House of Representatives
https://history.house.gov/
History of the US Senate
https://www.senate.gov/art/art_hist_home.htm
History of the Spanish Congress (19th century)
https://www.congreso.es/en/cem/paphist
Argentinian Congress Library
https://bcn.gob.ar/publicaciones/dossiers
Chilean Congress Library
https://www.bcn.cl/historiapolitica/corporaciones/periodos_legislativos_index
Cámara de Diputados de Argentina
https://apym.hcdn.gob.ar/
Archivo Digital de la Legislación del Perú
https://leyes.congreso.gob.pe/Inicio.aspx
The Centre for US Legislative Archives
https://www.archives.gov/legislative
Documents from the Instituto de Estudios Históricos del Parlamento Argentino
https://iehpa.wordpress.com/publicaciones/