"[4] Greenthal and his brother, Harris, and son-in-law, Samuel Casper, were all convicted in 1877 for robbing $1,190 in March 1877 from a farmer named William Jenkson traveling by train.

They had followed Jenkson from Albany, where he had "flashed his newfound wealth," to Rochester, where the gang made a pretense of befriending him and helping him with his bags while Abe stole the farmer's pocketbook.

[6] Greenthal was next arrested in Brooklyn on December 30, 1885, by New York City chief of detectives Thomas F. Byrnes, for robbing a resident of Williamsburg of $795.

[4] Greenthal pleaded guilty to second-degree grand larceny and was sentenced to five years in Crow Hill prison in Brooklyn.

The True Story of Abraham Greenthal, King of the Pickpockets in 19th Century New York City, as Revealed from Contemporary Sources [8]