Two typescript memoirs: "Voennoinzhenernaiia komissiia russkogo pravitel'stva v Severo-Amerikanskikh Soedinennykh Shtatakh v Pervuiu mirovuiu voinu 1914-1917 g."; and "Iz Niu Iorka v Rossiiu i iz Sovetskoi Rossii v Niu Iork. Moe prebyvanie v Sovetskoi Rossii v 1917-1919 g. i ukhod iz nee" (combined ca. 50 p.). There are also two curricula vitae for Baldin, an offprint of an article on engineering and a typescript of an article on enginering by him.