Margot McShane and Alex D'Mario of Napa were the fourth lesbian couple to get 'married' in San Francisco, but their childrens birth certificates have spots only for 'mother' and 'father.' The pair had planned to go to court, marriage licence in hand, and demand that McShane has the same parental benefits as D'Amario.California's justices ruled narrowly on the limits of the mayor's authority to interpret state law, and did not resolve whether the state constitution would permit same sex marriage, as Massachusetts highest court found. The couple still may have a case, said John Mayoue, who wrote 'Balancing Competing Interests...