This is a bit long, but I'm lost/stuck and need help.

I have data stored in XML format in SQL. I ommitted some of the empty rows for brevity:

<SuperCollectionClass xmlns:i="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://schemas.datacontract.org/2004/07/ConfigManager.ChangeSetEngine">
  <CustomConfigurations xmlns:d2p1="http://schemas.datacontract.org/2004/07/ConfigManager.ChangeSetEngine.Objects" />
  <LastInternalPrimaryKey>0</LastInternalPrimaryKey>
  <LkpPresortLocations i:nil="true" />
  <LkpPrinterInkColors />
  <MmlDepartmentForms i:nil="true" />
  <MmlDepartmentImportFileTypes i:nil="true" />
  <TblAppPubFiles i:nil="true" />
  <TblCompanys />
  <TblConfirmBatches i:nil="true" />
  <TblConsumableVersions i:nil="true" />
  <TblDataExports />
  <TblDepartmentAddresses>
    <TblDepartmentAddress>
      <InternalPrimaryKeyValue i:nil="true" />
      <RowState>Update</RowState>
      <DepartmentAddressID>205</DepartmentAddressID>
      <DepartmentID>4</DepartmentID>
      <Name>New Return Address Proj 1</Name>
      <AddressTypeID>2</AddressTypeID>
      <CountryCodeID>1</CountryCodeID>
      <Address1>PO Box 9044</Address1>
      <Address2 i:nil="true" />
      <Address3 i:nil="true" />
      <City>Temecula</City>
      <State>CA</State>
      <Zip>92589-9044</Zip>
      <DataVersion xmlns:d4p1="http://schemas.datacontract.org/2004/07/System.Data.Linq">
        <d4p1:Bytes>AAAAAAAAz+g=</d4p1:Bytes>
      </DataVersion>
    </TblDepartmentAddress>
  </TblDepartmentAddresses>
  <TblDepartmentExports />
  <TblRecordIndicatorMaps i:nil="true" />
  <TblRecordIndicators />
  <TblSubLetterIndicators i:nil="true" />
  <TblSubLetters i:nil="true" />
</SuperCollectionClass>

The data is deserialized into a collection of SuperCollectionClass objects. For any node that has children, such as
TblDepartmentAddresses above, I want to iterate through the data rows. So far I have this working:

PropertyInfo[] Properties = typeof(SuperCollectionClass).GetProperties();
foreach (var property in Properties)
{
    // PropertyName will contain the name of a table node 
    string PropertyName = property.Name.ToLower();

    if (PropertyName.Substring(0, 3) == "lkp" ||
        PropertyName.Substring(0, 3) == "mml" ||
        PropertyName.Substring(0, 3) == "tbl")
    {
        // Value will not be null if there are child nodes
        var Value = property.GetValue(ProjectManager.Instance.ReconciledData, null);

        if (Value != null)
        {
            // What goes here? How do I iterate through the child nodes??
        }
    }
}