There are over 90,000 with the Johnson surname listed at WikiTree. If you would like to look at the list, click on "Find" at the upper right of this WikiTree page. First names, birth year and location would help narrow the search. When you click on the Find menu, it will open and then click on Surnames.
Also, the Help menu can be useful if you want to check it out. Don't be reluctant to ask questions. Many at WikiTree like to answer questions.
