Use Custom Field with TreeNode

The Modal code with the query using the multidocumentquery

 public List<TreeNode> GeneralList { get; set; }

// General
             GeneralList = new MultiDocumentQuery()
                .Type("Site.Article", q => q
                    .Columns("ArticleID", "ArticleTitle", "Image")
                    .Path("%/Articles/%", PathTypeEnum.Explicit)
                    .Path("%/Posts/%", PathTypeEnum.Explicit)
                )
                .Type("Site.MarketingPage", q => q
                    .Columns("MarketingPageID", "Title", "Hero")
                    .Path("%/Showcase-Pages/%", PathTypeEnum.Explicit)
                )
                .Where("DocumentID IN (SELECT[DocumentID] FROM CMS_DocumentCategory WHERE[CategoryID] = 46 GROUP BY DocumentID HAVING COUNT('DocumentID') = 1)")
                .Published()
                .Columns("ArticleTitle", "Title", "Hero", "Image", "ArticleID", "MarketingPageID", "DocumentID", "NodeName", "NodeAliasPath", "DocumentPublishFrom", "NodeAlias", "ClassName")
                .WithCoupledColumns()
                .OnSite(SiteContext.CurrentSiteName)
                .OrderBy("NewID()")
                .ToList();

The query turns out fine, grabbing all the info needed but when I go into the view:

    @foreach (var page in Model.GeneralList)
                        { 
                            <div class="sponsored-article container">
                                <a href="@page.AbsoluteURL">
                                    <img src="" width="435px" height="245px" />
                                    <h3>@page.NodeName</h3>
                                </a>
                            </div>
                        }

NodeName pulls in fine but if I use @page.ArticleTitle to try and get the article title from the Article column, I get the error: CS1061: 'TreeNode' does not contain a definition for 'ArticleTitle' and no accessible extension method 'ArticleTitle' accepting a first argument of type 'TreeNode' could be found (are you missing a using directive or an assembly reference?)

Any thoughts on how to implement it so these custom fields will pull in like the default ones?

Thanks for any help.