Art. 10. The Prefectural Governor may, if he thinks it necessary, cause the headman of the city, town or village concerned (where there are wards in the Metropolis of Tokyo, and in the Cities of Kyoto, Osaka, Yokohama, Kobe and Nagoya, the headman shall mean the headman of a ward; and the same shall apply hereinafter) and other proper persons to join the Welfare Committee.