All familiar proper names should be written in shorthand by the advanced student.
The same is true of the names of states, cities, countries, etc. The student should not resort to longhand writing in order to make his page legible, except in cases of absolute necessity, and this generally applies to spelling of certain proper names.
"Gregg Shorthand had achieved the most extraordinary success ever attained by any system in the history of shorthand." John Robert Gregg, 1922