Addressing an envelope to a male child use to be 'Master', but now it can be Mr.and the female Miss.
male
When addressing a standard envelope, the correct location for the return address is the upper left corner of the envelope.
When addressing a side flapped envelope the side flap should be to to the right - regardless as to whether the person is addressing the envelope is left or right handed. So the postage stamp is on the same side as the opening flap.
Señorita
Spinster means an unmarried female
An unmarried male is a bachelor.An unmarried female is a spinster.
Ugly
You only write on the envelope who you are addressing to. If you want to write to the wife, write down the wife's name only.
If you are addressing a married woman use senora. If it is a child or an unmarried woman use senorita.
When addressing an envelope to a female pastor and her husband, you would typically write her name first, followed by her title. For example: "Rev. Jane Smith and Mr. John Smith." If you prefer a more formal approach, you can use "The Reverend Jane Smith and Mr. John Smith." Be sure to include their full names and any relevant honorifics, and place their names centered on the envelope.
that is impossible a female must be married to be a mummy