Some of the presidential children don't have birth years because a) they're not on Wikipedia (where I get most of their information) and/or b) their profiles on Geni are private. The information (both names and birth years) can also vary from one website to another. For example, Fe Quirino (Elpidio's youngest daughter) is "Fe Angela" on Wikipedia and "Fe Esperanza" on Geni.
Some of the presidential children don't have birth years because a) they're not on Wikipedia (where I get most of their information) and/or b) their profiles on Geni are private. The information (both names and birth years) can also vary from one website to another. For example, Fe Quirino (Elpidio's youngest daughter) is "Fe Angela" on Wikipedia and "Fe Esperanza" on Geni.