@Eshanks65, You may try to export the clients from TY14 to Comma Separated File (CSV) and import them in TY19 as CSV.

You need to be in Open Client to use Import and Export.

To Export: 

1) Open the client

2)  File ==> Export Client ==> Comma Separated File

To Import:

1) Open the client

2)  File ==> Import ==> Comma Separated (CSV)

3) Follow the wizard