Portland’s Der Rheinlander to Close After 53 Years:: 

Der Rheinlander was founded in 1963 by Portland’s original celebrity chef, Horst Mager. The chef appeared on KOIN 6 in the 1970s doing a weekly cooking segment. In the 1990s, Suzeanne Mager, Horst Mager’s daughter, purchased the business, keeping it in the family.

http://koin.com/2016/09/27/portlands-der-rheinlander-to-close-after-53-years/