The death or incompetency of a depositor who has in writing appointed an agent to indorse instruments for the payment of money and to deposit such instruments to the credit of the depositor’s account with a banking institution shall not terminate the authority of the agent to make such indorsements and deposits and such authority shall continue until the banking institution shall receive, at the office in which the account is maintained, actual notice of such death or incompetency.

L.1948, c. 67, p. 353, s. 221.