If any are unaware of the "necktie" connection, this is from http://www.oldmagazinearticles.com/pdf/Twain%20-%20Harte.pdf:
"...his necktie. Always it was of a single color, and intense. Most frequently, perhaps, it was crimson--a flash of flame under his chin; or it was indigo-blue, and as hot and vivid as if one of those splendid and luminous Brazilian butterflies had lighted there." - B. Clay Shannon

      From: Clay Shannon <[log in to unmask]>
 To: [log in to unmask] 
 Sent: Tuesday, December 13, 2016 6:05 AM
 Subject: Was the St. Louis smarty Bret Harte?
   
I started re-reading Tom Sawyer (in Spanish) last night; I noticed somethin=
g for the first time: the way the new kid in town, the citified dandy (the =
"St. Louis smarty") makes me wonder if Bret Harte was Twain's mental image =
for this irritating adversary, particularly where he mentions his colorful =
tie:
This boy was well dressed, too=E2=80=94well dressed on a week-day. This was=
 simply astounding. His cap was a dainty thing, his close-buttoned blue clo=
th roundabout was new and natty, and so were his pantaloons. He had shoes o=
n=E2=80=94and it was only Friday. He even wore a necktie, a bright bit of r=
ibbon. He had a citified air about him that ate into Tom=E2=80=99s vitals.

Was this boy conjured up by a mental image of Bret Harteless?=C2=A0- B. Cla=
y Shannon