López Lázaro taught at the Associate Reformed Presbyterian Seminary in San Luis Potosi, Mexico. He studied theology there and in Cuba. He is said to have served at the Presbyterian church in Rioverde, Mexico, twice while in seminary, and then as pastor (1957–62 & 1969–76).

  1. Corazones Te Ofrecemos (1965)
  2. Honor, Loor y Gloria
  1. Cristo Divino, Hijo Unigénito