This is excellent, many thanks!

One may also consider:
• Drouet d’Erlon, Jean–Baptiste. Vie Militaire, 1844.
• Parquin, Charles–Denis. Souvenirs Militaries, 1897 (and other editions in French and English).
• Pelet, Fririon and Illens. Letters to the editor, Spectateur Militaire, May, June and July, 1841.
• Webern, Carl Emil von. “Almeida,” Zeitschrift für Kunst, Wissenschaft und Geschichte des Krieges, 1857. (Webern was serving in the Westphalian Army and was thus not in Portugal, but he recounts in considerable detail his post–war discussions of Almeida with French officers who participated in operations around the fortress.)
• Koch's Mémoirs of Masséna.
• Sous–Lieutenant of the 25e Légère notes in Les Campagnes d'Allemagne, d'Espagne et de Portugal, Notes au jour le jour, Journal de la Nièvre, 1900.
• Note a memoir, but of possible interest is that Massena's battle report for Fuentes de Oñoro can be found i the Journal de l'Empire, 22 Mai 1811.