There was only 1 Fannie Steinman around her age that lived in Philadelphia. This was to a Sam aka Samuel and Ray aka Rachael Steinman. In Census varius ages 1886+. There is a 1921 Naturalization Petition on Ancestry under Sam Steinman from Luber Russia listing 1 daughter Fannie born 10 July 1910 which is close to the SSDI DOB. Also there are military and other records for Sam. I would suggest checking the headstone for the father's name. Also if you are not in Phili, contact the Phili Free Public library for an Obit for Sam or Ray that may list Banko.
There is a certfication arrival card with Sams Petition for the ship arrival information. This should get you started. You may be able to get a marriage certificate for Fannie from one of the payfor sites.