There is some confusion about the spelling of Perot's last name. Perot himself used the spelling Pérot in scientific publications, but according to the French civil registry, his family name was Perot, without accent.
^Métivier, Françoise (September–October 2006). "Jean-Baptiste Alfred Perot" (pdf). Photoniques (in French) (25). Retrieved 2007-10-02. (inset "Pérot ou Perot?" on the second page. Translation: "In the previous issue...we wrote "Pérot", after the spelling that Alfred Perot himself used to sign his articles. Several readers pointed out to us that the "official" spelling — that is, the one used on the birth certificate — does not have an accent.")