SQL - How to Return Multiple Fields from SubQuery using MIN(date) and GROUP BY

I am appealing to the T-SQL Spice gurus: my head-banging has created a big-enough hole in my cube wall already...

I run T-SQL on SQL Server 2014. I'm trying to return multiple fields from a subquery that uses MIN function on a date field. I've not been able to find the answer on the GoogleWebs.

The ClientVisit table contains ClientVisitID, ClientID, and VisitDate (among many, many other fields, but these are the pertinent ones for this query). I want to return the ClientVisitID value for the earliest VisitDate for each ClientID.

So the data in the table looks like this:

I...