Use all four names or find some phrase that covers them like: Mr J. Doe and family.
men
Gentlemen and Madams
Gentlemen, ...
Muslim women are allowed to address men, women and children.
If you are addressing several men and women in a letter, then the salutation can be 'Dear Ladies and Gentlemen'. Another salutation can be 'Sirs and Madams'. These types of salutations can be used for men and women that are on a committee.
Dear Sirs,
To properly greet a royal, there is no formal protocol. There is a traditional method when greeting members of the royal family, which is, for men, they would bow their head, and for women, they would curtsy. To address the Queen, one would say, "Your Majesty" and then one would continue to call her, "Ma'am".
Congress
The Letter M Of Course
Men should make more money then women because they support their families.
You put in your address and instead of saying "Dear sir," you would say, "To whom it may concern"
Yes, historically more men have won Nobel Prizes compared to women. However, efforts are being made to address this gender disparity through initiatives that promote diversity and highlight the contributions of women in various fields.