Misc: thomas magnum's dad was played by what actor?

Questions

What former riverboat pilot & author called the Mississippi "the crookedest river in the world"?

What government issue item did sensitive G I's dub "sandpaper"?

What Greek wrote Meteorologica, popularizing that name for the study of weather?

What group has more gold, platinum & multi platinum albums than any other?

What insect does an isopterpophobic homeowner fear?