(a) Shall fail to comply with any of the provisions of this article relating to his official oath and declaration.

(b) Shall become disqualified for any of the reasons specified in this article.

(c) Shall have failed to attend the regular meetings of the board of trustees and also of any committee of the board of which he is a member, for a period of six successive months, unless excused by the board for such failure by resolution adopted at the first or second regular meeting of the board after expiration of such six months period and entered upon its minutes; provided, however, that a trustee who has forfeited or vacated his office by reason of such failure to attend meetings shall not be eligible for re-election until the expiration of one year from the date of the first regular meeting of the board at which a resolution could have been adopted by it, as herein provided, to excuse such failure. A copy of such resolution shall be transmitted to the superintendent by the savings bank within five days after its adoption.

(d) Shall violate any of the provisions of this article imposing restrictions upon trustees and officers.

(e) Shall reach the mandatory retirement age, if any, prescribed in the by-laws of the savings bank. 3. A trustee who has forfeited or vacated his office shall not be eligible for re-election, except when the forfeiture or vacancy occurred solely by reason of his

(a) Failure to comply with the provisions of this article relating to his official oath and declaration; or

(b) Failure to attend the regular meetings of the board of trustees or neglect of his official duties as prescribed in paragraph (c) of subdivision two of this section; or

(c) Disqualification through becoming a non-resident, or becoming a trustee, officer or employee of another savings bank, or becoming a director or trustee of a bank, trust company, national bank, mortgage or title company and such disqualification shall have been removed.

(d) Resignation while free of any of the disqualifications specified in this article.