[1] He attributed an early interest in science to a physics book that his mother gave him as a child.
[1] At Harvard, Graef Fernández met Luis Enrique Erro, who invited him to join the effort to found the Tonantzintla Observatory in the Mexican state of Puebla.
[5] In The Skin of the Sky, Graef Fernández is described as "small, round and prone to a cordiality that made him lovable"; he seemed an unlikely partner for Erro, who was a slender, elegant man with a hearing aid.
[6] Ultimately, Graef Fernández was more interested in studying gravitational issues than astrophysics, so he sought an academic position.
[4] Graef Fernández organized the meeting that led to the establishment of the Mexican Mathematical Society in 1943.