What about these two siblings?
Juanito, born march 1923, died nov. 2, 1924 (18 months)
Angelines, born october 1924, died nov 10, 1924 (1 month, died 8 days after her brother)
Could you imagine what would their parents go though after that?
"Beloved son and daughter, from our souls. We will never forget you, ever"
No wonder they didn't, as long as they lived. But now the grave is forgotten.