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(1)if the husband has died or has been adjudged incompetent by a court since before the passage of the time period during which he might institute the action;
(2)if it is not known whether the husband is still alive or has died or his residence cannot be found.
However, this action shall not be instituted upon the passage of three months from the day the interested person knew or should have known of the birth of the child.
Section1524.A claim of being a legitimate child can be proved by the birth register.
If nothing is found in the register, a circumstance in which the state of being a legitimate child has been generally known all the time shall suffice to be evidence.
The circumstance in which the state of being a legitimate child has been generally known all the time shall be established by the fact which shows the relationship as a father and child found between the child and the family to which the child claims to belong, such as the fact that the father provides education or maintenance to the child or allows him or her to use his family name, or any other fact.
Section1525.A child born of a woman who has not married a man shall be deemed to be a legitimate child of such woman.
