They were not deacons.
They were never deacons.
Women were called by a feminine form of the name (obviously not the English ‘deacon’) just as the wife of a merchant was called by a feminized form of ‘merchant’ even though she never actually worked as one.
People didn’t have ‘last names’ as we do now, and so they were known by some kind of physical feature, such as “John with the Red Beard” or 'Margaret Longnose"; or they were known by a place, such as Michael of Gloucester or Jeanne d’Arc, or they might have a patrynomic like Leif Erikson, or Sven Svenson, or Kristen Lavransdatter. So Marcella the wife of Tertius the deacon would be Marcella 'deaconess" and while Tertius went and baptized the MEN, Marcella would baptize the women (any person, male or female, may baptize). But Tertius had an ordination, a laying on of hands by the apostles or their successors. Marcella may have had a ceremony like a blessing, but NOT a laying on of hands, not an ordination.