Jr. When the son is named after the father, he adds Jr. to his name. Upon the death of the father he omits it. This abbreviation is sometimes added to a woman’s name on her card when her husband has the same name as his father, and it is necessary to distinguish between the cards of the daughter-in-law and the mother·in-law. If the mother-in-law should become a widow and wish to retain the husband’s baptismal name, she should add Sr., while her daughter would erase Jr. If both become widows, and wish to retain their husband’s Christian names, the daughter-in-law should add Jr.