Although there was no official Fathers Day until , this amateur site httphome.comcast.nets.astorinoCal... lendar.htm says Fathers Day was June in. 그래서 증조 할머니가 편지에 5월이라고 썼지만 6월을 의미했을 수도 있습니다. Hard to say with no officially mandated Fathers Day anyhow.