By the custom of this borough, even though there were houses, lands, or tenements that a wife owned before being married, or that were purchased by her husband after they were married and granted and confirmed to them in their joint names or in the name of the wife and others, if the wife outlives her husband, the terms of such grants and confirmations shall not bar her from claiming and recovering a one-third share in any other lands, houses, or tenements within the borough, of which her husband was the sole owner during their marriage. With the proviso that if the wife has, as determined by questioning from the bailiffs then in office, or either of them, quitclaimed some of them to any other person or persons, this fact being of record, as evidenced in the borough court rolls, then she is utterly and forever debarred and excluded from her dower rights therein, by the custom of this borough.