Unknown Disney comics heroes? (Rob Roy, Stormer, The black arrow)

[D.M. van Eijmeren]

Here are some heroes which I couldn't find in Inducks.
At least "Rob Roy" is printed as a "Walt Disney presents" comic.
Does anyone know these heroes?

Here are scans, taken from 1950s Flemish Mickey Magazines:

Walt Disney presents Rob Roy the Scottish freedom hero
http://mcdrake.nl/temp/Mickey_Magazine_Vlaams_225_10.jpg
Stormer
http://mcdrake.nl/temp/Mickey_Magazine_Vlaams_225_20.jpg
The black arrow
http://mcdrake.nl/temp/Mickey_Magazine_Vlaams_339_10.jpg

Links to the magazines:
http://coa.inducks.org/issue.php?c=be/MMN+225
http://coa.inducks.org/issue.php?c=be/MMN+339

-- Daniël