Send a message to the person who requested a photo of the grave monument of Johan Carel Derks with the following comment:
He's my granddad who emigrated to Australia when my own dad was 15. I never knew my granddad because my dad never talked about him. Now my dad has died and i've found many letters from my grandpa to my dad. I'm looking for his 4 daughters to. I know 1 daughter named Erica stayed in Holland.