Looping Through 2 Columns & Copying 2nd Column's Data Under the First - excel

Question

I am trying to create a list with 2 columns by placing the values from the 2nd column under the first on a new tab. In my screenshot I have column A "Data 1" and column B "Data 2". Each value under Data 1 has a corresponding value under Data 2. I am trying to make it look like the Second Tab column where the value under Data 1 is copied over first then Data 2 is Copied underneath. There are blanks in between values so im trying to figure out a way to capture all the data excluding the blanks so its 1 organized list. I have tried the following so far but i cant figure it out:
Sub MoveData()
Dim wb As Workbook: Set wb = ThisWorkbook
For i = 1 To 15
wb.Sheets("Sheet1").Range("A2:A" & i).Copy Destination:=wb.Sheets("Sheet2").Range("A1")
wb.Sheets("Sheet1").Range("A2:A" & i).Offset(0, 1).Copy _
Destination:=wb.Sheets("Sheet2").Range("A2" & lastrow).Offset(1, 0)
wb.Sheets("Sheet1").Range("A2:A" & i).Offset(0, 1).Copy _
Destination:=wb.Sheets("Sheet2").Range("A2:A" & i).Offset(1, 0)
Next i
End Sub

Answer 1

With the help of the following function you will find the last non empty row in column 1
Function FindLastRow(rg As Range) As Long
On Error GoTo EH
FindLastRow = rg.Find("*", , Lookat:=xlPart, LookIn:=xlFormulas _
, searchorder:=xlByRows, searchdirection:=xlPrevious).Row
Exit Function
EH:
FindLastRow = rg.Cells(1, 1).Row
End Function
Then you can copy the data into worksheet 2 with the following code
Sub pasteData()
Dim wks1 As Worksheet
Set wks1 = Worksheets("Sheet1")
Dim lastRow As Long
lastRow = FindLastRow(wks1.Columns(1)) ' last non empty row in column 1
Dim rg As Range
Set rg = wks1.Range("A1:B" & lastRow) 'range with the data in question
Dim vdat As Variant
vdat = rg.Value ' copy the data into an arry
' dim array which is big enough for the result
Dim rDat As Variant
ReDim rDat(0 To 2 * lastRow)
' copy the data from the 2-dim array into 1-dim array
Dim i As Long, j As Long
For i = LBound(vdat) To UBound(vdat)
' copy only data where the first column contains data
If Len(vdat(i, 1)) > 0 Then
rDat(j) = vdat(i, 1)
rDat(j + 1) = vdat(i, 2)
j = j + 2
End If
Next i
Dim wks2 As Worksheet
Set wks2 = Worksheets("Sheet2")
' prepare the second range (bigger than needed but does not harm)
Set rg = wks2.Range("A1:A" & 2 * lastRow)
' copy the data into the second sheet
rg = WorksheetFunction.Transpose(rDat)
End Sub