(Date approx.) During the 70's Dene was instrumental in the establishment of four "Family Clubs" which still thrive today (?). He also researched and wrote up their family histories.
Macklin Family associates
The Leslie Clan
- Neville Cordes
1974
"History of the Macklin Families" (self published)
2012
Co-compiler "A history of the family of Frederick Christian Gerd Cordes and Anna Johnanna Cordes (nee Gneil): from Bendleb, South Australia to Bendleby, Muroa, Victoria", compiled by Neil A. Crouch, Dene D. Cordes and Robert J. Fulton. (First edition March 1970, published by Neville Cordes, Marion, SA)