(a) Election. Upon the death of a retired member retired pursuant to Section 1312 relating to Nonservice Connected Disability Pensions, any person entitled to a pension pursuant to Section 1316 relating to Nonservice Connected Survivor Pensions must make and file with the Board a written election to have the amount thereof calculated either upon the salary specified in Section 1316 relating to Nonservice Connected Survivor Pensions or upon the salary specified in Section 1312 relating to Nonservice Connected Disability Pensions and the Board shall grant the pension in accordance therewith.
(b) Election for Incompetent Person or Minor Child. Any such election, on behalf of any incompetent person or on behalf of a minor child of such member, must be made by the guardian of his estate and shall be either authorized or approved by a court order, a certified copy of which shall be filed with the Board. Section 1316 relating to Nonservice Connected Survivor Pensions hereafter shall be construed and applied in accordance with this section.