Wikipedia:

Joseph Ogle was born in Frederick, Maryland.
1777, his family was living on Buffalo Creek in what is today Brooke County, West Virginia.
During Revolutionary War, he commanded a Virginia company.
He was involved in Siege of Fort Henry, in what is now West Virginia.*
By 1785, he had settled his family in Northwest Territory, in which is present-day Monroe County [south-west Illinois].
He is said to have been first Methodist in Illinois, and helped found first Methodist church, Shiloh.
He first settled on road from Bellefontaine to Cahokia.
1796, he moved to New Design, in what is now Monroe County [south-west Illinois].
1791, Ogle was involved in a skirmish with indigenous Americans near what is now Waterloo, Illinois.
February 24, 1821, in New Design, Illinois, he died.
He is buried in Saint Clair County [south of Monroe county], Illinois.
He had a son who was also named Joseph Ogle; Joseph Junior was involved in Black Hawk War, and, 1846, died.

[Joseph Ogle was never on Ogle County.]

History of Ogle County, 1878, H.F. Keet and Company, Chicago:

Ogle County was erected by an act of Illinois legislator, approved 1836/1/16.
Name was suggested by Governor Ford, and was intended to perpetuate memory of Captain Ogle, whose coolness, courage anf daring were so conspicuous in long and bloody conflict attending siege of Fort Henry*, during early days of our country's history.

* Wikipedia:

Fort Henry was colonial and stood about ¼ mile from Ohio River in what is now downtown, Wheeling, West Virginia.
It was originally known as Fort Fincastle and was named for Viscount Fincastle, Lord Dunmore, Royal Governor of Virginia.
Later it was renamed for Patrick Henry, and was at time located in Virginia.
It was subject to two major sieges, two notable feats (McColloch's Leap and Betty Zane's trek through battle) and other skirmishes.
It was besieged twice during American Revolutionary War, once in 1777 and again in 1782.

First Battle of Fort Henry:
In 1777, Native Americans of Shawnee, Wyandot and Mingo tribes joined to attack settlements along Ohio River.
Local men later joined by recruits from Fort Shepherd (in Elm Grove) and Fort Holliday defended fort.
Native force subsequently burned surrounding cabins and destroyed livestock.
Major Samuel McColloch led small force of men from Fort Vanmetre along Short Creek to assist besieged Fort Henry. McColloch was separated from his men and was chased by attacking Indians. Upon his horse, McColloch charged up Wheeling Hill and made what is known as McColloch's Leap 300 feet (91 m) down its eastern side to safety. Indians rushed to edge, expecting to see Major lying dead in a crumpled heap at bottom of hill. To their great surprise they instead saw McColloch, still mounted on his white horse, galloping away from them.

Second Battle of Fort Henry:
In 1782, a native army along with some British soldiers attempted to take Fort Henry.
During this siege, Fort Henry's supply of ammunition was exhausted.
Defenders decided to dispatch one of its men to secure more ammunition from Zane homestead. Betty Zane volunteered for dangerous task.  During her departing run, she was heckled by both native and British soldiers.  Upon successfully reaching Zane homestead, she gathered a tablecloth and filled it with gunpowder.  During her return, she was fired upon but was uninjured.  Some believed that one bullet did, in fact, pierce her clothing.  As a result of Zane's heroism, Fort Henry remained in American control.
Numerous other skirmishes took place nearby.