Find Name Of Column Active Cell Is In

I have a code which looks at sheet2, useing a date value, and returns the Vent value and the Tanker value to sheet1. Because of the file size I have pasted a small section of Sheet2 in the hopes you can see what I am doing. As can be seen my code is not going to work with Offset as soon as the Data fills further down the sheet(every 2 weeks). I need a way to reference the active cells column name (it is a named range) or header name. Both are the same. That is the header name is the same as the name of the range. there is a way to perhaps find the first cell of the column,which I guess would work,but have reached a stale mate with what I've tried so far.

Vent 01Vent 02Vent 03Vent 04
Date3/06/063/06/06n1/06/06
Tanker8248824617606
WhoJ AshJ AshEmptyHarry
Date
Tanker
Who

Private Sub DueCommandButton_Click()
Dim strRecordID As Range
Dim rngData As Range
Dim Vents2 As Range, Tanker_Result As Range
Dim wsheet1 As Worksheet, wsheet2 As Worksheet
Dim Column_Name As Range
Dim ActiveCell As Range
Set wsheet1 = Worksheets("Sheet1")
Set wsheet2 = Worksheets("Sheet2")....................