Silver Knight

Real Name: Sir Briane
First Appearance: Complete Book of Comics and Funnies (1944)
Original Publisher: Nedor
Created by: Leo Isaacs, Ken Battlefield and Everett Raymond Kinstler

Origin: 

Sir Briane was a bold knight of King Arthur's court who wore enchanted armor forged by the Deathless Druid (probably Merlin). The armor rendered him highly resistant to injury.

He fought alongside the other Knights of Camelot such as Sir Gawain and Sir Kay against the Saxons and the Vandals. When the Saxons had been driven out and the Pax Arthuriana had been won he pit his strength against evil knights and monsters such as the Barghest.

Because of his sense of honor (or his ego) he would not wear his enchanted armor in a tournament, which the Barghest used to his advantage.

His lady was Tarna, a brave warrior in her own right who often aided him in battle and once wore his armor.

Golden Age Appearances:

Complete Book of Comics and Funnies #1

America's Biggest Comic Book #1

Mystery Comics #1

America's Best Comics #26

Wonder Comics #18-20

Lone Rider

Real Name: Unknown
First Appearance: Lightin' and the Lone Rider (January 1939)
Original Publisher: Lincoln Features Syndicate/Eastern Color
Created by: Jack Kirby (as Lance Kirby)

Golden Age Origin:

Lone Rider put on a black mask and costume and rode his horse Lightnin' to fight injustice. He was assisted by a Mexican guitar player named Diego and his son Pepito as well as Texas, the laziest man and quickest draw in the west. The Lone Rider also worked with Sheriff Hank Fletcher who the Rider disguised himself as when apprehending Hutch Kruger's gang so the sheriff would receive the credit.

His enemies included Hutch Kruger and his gang as well as the immortal 50,000 year old telepath known as Dr. Chuda.

At first his adventures seemed to be the Old West, but in Famous Funnies #66 elements of the modern day technology such as television screens and motor boats started showing up in the feature.

Golden Age Appearances:

Famous Funnies #61-80

Lightning and the Lone Rider Strip (January-February 1939)

Notes:

The Lone Rider was also a character that had his own book put out by Ajax-Farrell. The basic look of the characters were the same, but whether it was the same character or not is unclear.

Green Knight & Lance

Real Names: Denis Knight & Lance Cooper

First Appearance: Dynamic Comics #2 (1941)

Original Publisher: Harry A. Chesler/Dynamic

Created by: Al Plastino

Origin:

Denis Knight was a wealthy American sportsman who inspired by the chivalrous knight of the past becomes the Green Knight. In this identity, Denis becomes a defender of the defenseless and keeper of justice.

While patrolling the Everglades, Denis discovers a young boy has been kidnapped by a blood thirsty Vampire and his hulking minion. After saving the young boy, Lance Cooper, from the monsters, Green Knight adopts him as his crime fighting partner Lance. Together they prevent the vampire from drinking the blood a of a damsel in distress named Dale who foolishly ignored her friends warnings and wandered into the everglades.

Powers and Abilities:

Green Knight had no powers but he was skilled with a bow/arrow and a sword. He was also capable at hand to hand combat.

Public Domain Appearances:

Bulls Eye Comics #11

Dynamic Comics #2-3

Kayo Comics #12

Blue Streak & Tago

Real Names: Unknown & Tago
First Appearance: Crash Comics #1 (1940)
Original Publisher: Holyoke
Created by: Unknown

Origin:

The Blue Streak was called a "Defender of the People" and the "self-appointed foe of ruthless dictators." His sidekick was his Asian chauffeur and friend, Tago.

Masked Tago

Blue Streak had no superpowers but was a skilled fighter and wore a bulletproof vest under his costume.

Public Domain Appearances:

Crash Comics #1-5