My question involves name change laws in the State of: Texas .....i have a 9 yr old son... his father was not present at birth so therefore he is not on the birth certificate...BUT, he does have his last name....i was never married to my son's father...we have not seen or heard from him in about 4 years or so and have no idea where he is......NOW.. i am married to a wonderful man...and we (my son included).. would like to change my son's last name to my husband's last name.... how possible would this be without the biological father??? (we have considered adoption but there is a huge price difference and i'm afraid a new can of worms to go with that).. thank you