 Author of a geodetic manual, back in Spain he engaged in hydraulic engineering and in the 1860s ran a technical college in Barcelona, an institution he founded himself; he also managed a local railway line.Luis de Mas married Elvira Nadal Valls (1833-1912); the couple lived at the Manso Escorial estate near Vich.They had at least 8 children, born between 1853 and the 1870s; Teodoro was the third in sequence, but the first son.