Isaac Davison  Isaac Davison is a NZ Herald political reporter.
Battle to honour dead mother won in House  MP's grant family's
wish to change 'unspeakable cruel' birth certificate law.
Doreen Shields, left, and Rowen Sullivan celebrate the law
change.  Rowen Sullivan always knew being raised by two mothers
was rare.  The 21-year-old, born in England and now living in
Wellington, said she once attended a support group for children
of same-sex parents after moving to New Zealand. Her family was
the only one there.  "I've never met a child of a same-sex
relationship in my entire life apart from maybe the odd 4-year-
old," she said. "Maybe their mother or father has come out later
in life but never from the get-go, with two mums."  It was not
until one of her mothers, Diane Sullivan, was diagnosed with
terminal cancer that her family's difference became a problem.
The diagnosis eight years ago began a long process which ended
with the passing of the Sullivan Birth Certificate Bill on
Wednesday - a rare piece of