[1] His father, Manuel Serdán, was one of the founders of the Partido Socialista Mexicano (Mexican Socialist Party), and co-authored La Ley del Pueblo that called for agrarian reform.

[2] After the Electoral College declared Díaz and Ramón Corral victors in the 1910 elections, Serdán is reported to have said, "Do not intone the hosanna of Victory, Señores Porfiristas and Corralistas, for we Anti-Reelectionists have not yet fired the last cartridge.

"[3] When Madero escaped jail in 1910 and issued the Plan of San Luis Potosí, which called for rebellion throughout Mexico on November 20, 1910, Serdán returned to Puebla to organize revolution there.

His sister Carmen Serdán went to San Antonio, Texas, a center of exiled Mexican revolutionaries, and obtained 20,000 pesos for the rebellion.

His house on Santa Clara Street in the center of Puebla is a museum and remains as he left it the day he was killed.