4. Gijsbertus LAMBOO "Bert" was born 20 Nov 1930 in Voorschoten. He married Catharina Adriana ZONNEVELD on 22 Jul 1953 in Voorschoten. [Parents]

5. Catharina Adriana ZONNEVELD "To" was born 16 Dec 1931 in Voorschoten. [Parents]

6. Cornelis VAN DER ELST "Kees" was born 12 Dec 1928 in Noordwijkerhout. He married Geertruida STRAATHOF. [Parents]

7. Geertruida STRAATHOF "Truus" was born 2 Mar 1933 in Lisse. [Parents]