Merge csv's - no join - powershell

Question

I need to combine a slew of Excel spreadsheets. I used PowerSHell to convert them to CSVs and now need to merge them, but not as you typically would. The merge doesn't use a join. If I have 3 files with 100 rows each, my new file should have 300 rows. So, this is more if a UNION than a JOIN to use database terms.
Some of the columns do have the same name. Some don't. If they have the same name, a new column shouldn't be created. Is there a way to do this without manually having to list out all the columns as properties?
Example (with only 2 files)
File1:
Name Address
Bob 123 Main
File2:
Name City
Bob LA
Tom Boston
Results
Name Address City
Bob 123 Main
Bob LA
Tom Boston

Answer 1

At the end of the day this might not be sorted right. The trick here is to read the header of each file and collect it as a string array and remove and of the duplicates.
This code assumes all the files are in the same location. If not you will need to account for that.
$files = Get-ChildItem -Path 'C:\temp\csv\' -Filter '*.csv' | Select-Object -ExpandProperty FullName
# Gather the headers for all the files.
$headers = $files | ForEach-Object{
(Get-Content $_ -Head 1).Split(",") | ForEach-Object{$_.Trim()}
} | Sort-Object -Unique
# Loop again now and read in the csv files as objects
$files | ForEach-Object{
Import-Csv $_
} | Select-Object $headers
The output would look like this:
Address City Name
------- ---- ----
123 Main Bob
LA Bob
Boston Tom