How Do I Combine the Stats From Their Other Records for my Players?

If you are have main administrator rights to your club's site you are able to do this yourself; please use the following procedure:

Go to Admin>Day to Day>Members>Member Database and set the Role dropdown to Member of Website; then click the Add New Member With This Role button

Enter the surname of the member concerned and club or county board where their other stats are located (this can be your own club if they are there and the entry with which they are associated has been 'lost') and search

If that produces a result then select it; that should add it to your own database so that you can match their records together