There are over 1,000 others with the McKeown surname listed at WikiTree. To find the list, just go to the Find menu at the upper right of this page. Click on Surnames and spell it out.
Also, if you can start your family tree with your parents, grandparents, great grandparents and so on, the potential for connecting will improve a lot. It's helpful to show birth year, marriage year and location. Location would be country, county and city.