If you use testdb120000.gramps , it occurs around some families related to:
*Oavenport, Mary R.
*Oavenport, Charity C.
*Oavenport, Dianah Jane
*Oavenport, Craig P.
*Oavenport, A. J.
*Oavenport, William Riley
etc.
with Oavenport, Simeon C as the starting person for relationships calculating. Most at least 1st cousins or children of 1st cousins.