My aunt is applying for de jure sanguinis at the Philadelphia consulate. Her father was born in the U.S. before his father naturalized; she was born prior to 1948 and married in the 1960s. The instructions from the PA consulate do not indicate that she needs her husband's birth certificate; however, at my appointment in New York I was told she would need it (in addition to her marriage certificate). Does anyone know whether Philadelphia collects this for women? (I tried e-mailing them but the citizenship office there does not reply to e-mails.)
I would get it just in case. When I was applying for my Italian citizenship, I was told that the women's information was not important - only the men's. This is Italy, afterall! Depending on which office I asked, I either needed this information, or I didn't, so I had the whole lot translated into Italian at considerable expense just to be on the safe side. When dealing with Italian bureaucracy, always err on the side of caution!