He was a successful businessman who owned and operated a glass and china importation firm in Philadelphia.

[3] His father was an Irish emigrant and a prominent Philadelphia businessman engaged in the importation of china and glassware.

Tyndale was accepted to attend the United States Military Academy but declined at the request of his mother.

Southern newspapers reported that Brown's body had been replaced in his coffin by an African-American corpse as an insult.

Tyndale led his brigade as part of George S. Greene's attack against the Dunker Church.

[13] He returned home to recuperate[14] and was promoted to brigadier general of Volunteers on November 29, 1862, for his actions at Antietam.

[14] In June 1863, he returned to active duty and was assigned to lead a brigade under General Erasmus D.

[14] He led a brigade under Carl Schurz and took part in the pursuit of Robert E. Lee's retreat from Gettysburg.

Tyndale led his brigade at the Battle of Wauhatchie, leading a bayonet charge and turning the enemy's flank.

[16] On August 26, 1864, Tyndale resigned from the army due to the lingering effects of his head wound.

[22] In 1876 Tyndale's prominence in the porcelain business caused his selection as one of the judges for the Centennial Exhibition.