I have no idea and it does not even say it in the textbook
Although Howell is not a stereotypically Jewish surname, any name can be a Jewish name if it is the name of a Jewish person.
Although Salada is not a Jewish surname in its origin, any name can be a Jewish name if it is the name of a Jewish person.
Cactus Keck died February 6, 1981, in St. Louis, MO, USA.
Peters can be a Jewish name (if it is a name used by a Jewish family) but it need not be Jewish. The name is used by Jews and by non-Jews. Think of all those Scandinavians.
Keck-Gottschalk-Keck Apartments was created in 1937.
Dorothy Neathery's birth name is Keck, Dorothy A..
Reenie Barrow's birth name is Irene Keck.
Anthony Keck was born in 1726.
Anthony Keck died in 1797.
Kevin Keck was born in 1973.
Charles Keck died in 1951.
Charles Keck was born in 1875.
Tinker Keck was born in 1976.
The Keck Observatory is located near the summit of Mauna Kea on the Big Island of Hawaii. It consists of two telescopes, Keck I and Keck II, which are among the largest and most scientifically productive telescopes in the world.
They are optical telescopes.
Aries Keck was born on 1970-03-22.