He was twice married, first in 1684 to Johanna Elisabeth van Volbergen, and after she died in 1696, to Josina Philippina de Bette.
[1] At the beginning of the Nine Years' War he was appointed Quarter-Master General of Waldeck's field army, still a lieutenant-colonel.
In 1703 the French threatened the Holy Roman Empire and the States General decided to send a detachment of 15 battalions under Van Goor to Louis William of Baden, the Imperial commander, as reinforcement.
Villars next marched to the Danube via a different route and Baden requested Van Goor's support in opposing the French advance.
[5] In early 1704 he was formally appointed Master-general of the Artillery of the States Army, with the rank of lieutenant-general, as successor of Menno van Coehoorn.
Van Goor's return to the Netherlands was now expected, but the Dutch Grand Pensionary Anthonie Heinsius prevented this in view of the planned Danube campaign of Marlborough.