His parents having died, he was reared by one Lieve Davits and was trained as a gloutlakenwercker, which is believed to mean general cloth worker and kindred trades. 
He was born in the year 1654 as appears by his oath and died 7 March 1716 at the age of 64 years. He died in New York City but is believed to be buried in Monmouth County, New Jersey. (See records heretofore quoted.) 
Prior to 1678 he had removed to Amsterdam, Holland, where he married about 1683 Femmetje Kock, daughter of Yoost Yanss Kock, a silversmith. As in the case of Johannes, she was an orphan and was reared by her guardian, Roelof Zweeries. One child, Anna, was born in Amsterdam. 
In 1687 the family removed to New York City, where they became members of the Dutch Reformed Church on September 2, 1687, uniting by letters from Amsterdam. The records of the church indicate that they were prominent and faithful members of that church during their lifetime. 
Johannes acquired property at what is now 72 Pearl Street, New York City, and acquired much other real property in the vicinity. He was a merchant and importer and was also concerned with maritime affairs. the Court Records of New York seem to indicate that he helped to finance ventures of Captain Captain Kidd during the time the Captain was commissioned a Privateer by the British Government. 
In the 1700 census of New York City, Johannes Outman is listed as the "master of family" in a household containing one male, age 16 to 20, two females, one male child and one male Negro. 
According to the "New-York Army List, 1700", "Jo" Outman" is listed as a Cornet "Of the Troop of Horse in y said Regim". The list, for the Province of Yew York, is a "List of y Militia in his Ma Province of New York in America commisionated by his Excel. Rich Earle of Bellomont, Capt Generall & Gov in Chief in & over his Ma said Province &c. viz". 
On 5 July 1715, an act was passed by the General Assembly of the Province of New York "for naturalizing all Protestants of Foreign Birth now Inhabiting within this Colony." Such persons were required to take the Abjuration Oath, which swore allegiance to King George, "Lawfull and Rightfull King", as against all claimants to the Crown in the name of the late King James. This oath was taken by Johannis Outman [of New York, Merchant]" on 23 August 1715. 
After the death of Johannes in 1716, his wife Femmetje continued in the business until her death which occurred 28 March 1732.