1. "Director-elect will tackle dissension." News clip, April 12, 1970. 2. "Future of Arboretum depends on Dr. Verdoorn." News clip, circa 1948. 3. "Arboreta hiring delay asked." News clip, March 10, 1970. 4. "Retiring Arboretum official feted." Pacesetter-Highlander, December 8, 1982, p.10. 5. …
1. "Director-elect will tackle dissension." News clip, April 12, 1970.
2. "Future of Arboretum depends on Dr. Verdoorn." News clip, circa 1948.
3. "Arboreta hiring delay asked." News clip, March 10, 1970.
4. "Retiring Arboretum official feted." Pacesetter-Highlander, December 8, 1982, p.10.
5. Waltham botanist to direct new Los Angeles Arboretum, Christian Science Monitor, November 13, 1948. Dr. Frans Verdoorn is the first director of the Los Angeles State and County Arboretum.
6."Arboretum CEO Schulhof to retire in late spring; new CEO expected this summer." Arcadia Weekly, p. 12, February 23, 2023.
7. "L.A. County arborteum selects new director." Pasadena Star News, May 25, 2023, p.A3,A5. Michael Desplaines will begin his new role as CEO of Los Angeles County Arboretum & Botanic Garden in July.