Need help with a quick way to insert 2 columns but 1 - 3 row results into system.data.DataTable using Powershell

Need some powershell help adding what could be variable results into system.data.datatable. I have the following powershell command that will return 1 - 3 rows depending on the cluster. I have limited the results to only the "name" and "OwnerNode" columns.

$clusterName = "MyCluster-1"
get-clusterGroup -Cluster $clusterName | where-object `
    {$_.name -like "*DB*" -or $_.name -like "*SQL*" -and $_.name -notlike "*MSDTC*"} | `
    Select-Object -Property Name,OwnerNode

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If the cluster has 3 SQL Instances installed, I will get results like this:

Name                       OwnerNode                                                                    
--------                    --------- 
SQL Instance 1       node1
SQL Instance 2       node2
SQL Instance 3       node1

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If the cluster has only 1 SQL Instance I will bet results like this:

Name                       OwnerNode                                                                    
--------                    --------- 
SQL Instance 1       Server1

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I want to insert the results into system.data.datatable or something where I can create one large 2 column list will all the SQL instance names (aka "Name") and all the OwnerNode names.

I want to then query this object for any and all "owner nodes" that own more than one cluster role ("name"). If I were using T-SQL to do this, I will simply create a temp table, then insert into the temp table using a cursor....But...I think I need to do this in powershell so i can connect to all the clusters in our domain. I think I can do the query of the data table on my on own, but I need help getting the results into a single data table from a list of clusters. I was able to create a list of all the clusters in my domain using this code:

$clusterList = get-Cluster -Domain mydom.local | where-object -like "*SQL*"

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Then I was able to use

foreach ($names in $clusterList) 
{
  get-ClusterGroup -Cluster $names | where-object `
 {$_.name -like "*DB*" -or $_.name -like "*SQL*" -and $_.name -notlike "*MSDTC*"} | `
  Select-Object -Property Name,OwnerNode
}

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Now I am just stuck on how to get each execution of "get-ClusterGroup into a dataTable. Please help = )