C#

dtjr.DefaultView.RowFilter = " Journal_Name Like '" + cbo_jrnl.Text.Trim() + "*'";

[{
   "date":
      [
         "date-value1", 
         "date-value2, 
         ........ , 
         "date-value729"
      ]
}]

{
  "data": [
    {
      "body": [ "body1" ],
      "link": "link1",
      "title": [ "title1" ]
    },
    ...........
    {
      "body": [ "body729" ],
      "link": "link729",
      "title": [ "title729" ]
    }
  ]
}

{
  "data": [
    {
      "body": [ "body1" ],
      "link": "link1",
      "title": [ "title1" ].
      "date": "date1"
    },
    ...........
    {
      "body": [ "body729" ],
      "link": "link729",
      "title": [ "title729" ]
      "date": "date729"
    }
  ]
}

// code here uses .NET 4.7

// in a NameSpace
public enum Divisions
{
    Undefined,
    Admin,
    Finance,
    Sales,
    Research,
    IT,
    Temp
}

// in a Class: assume 'Person is a typical POCO
public Dictionary<Divisions, Lazy<List<Person>>> DivisionToStaff { set; get; } =
        new Dictionary<Divisions, Lazy<List<Person>>>();

// initialization : typically done in a 'ctor
public Initialize()
{
    foreach (Divisions div in Enum.GetValues(typeof(Divisions)))
    {
        DivisionToStaff.Add(div, new Lazy<List<PersonNode>>());
    }
}

// sample use case:
// DivisionToStaff[personInstance.Division].Value.Add(personInstance);