September 1917 - September 1918
The Board of the Electrotechnische Vereeniging of {period} has been constituted as follows:
| P. Jongejan | President |
| R. Sijbrandij | Secretaris |
| P.L. de Vries | Thesaurier |
| H.J. Boon | Vice-President / Afgev. C.C. |
| A.L. Thomee | Bibliothecaris |