After dumping the contents of my authors object coming back from the second query, I learned of a property used when pulling the data from a Sequelize object
model.attritubes[];
Is an array of Strings which lists which data attributes will be outputted from the Sequelize Object. So before my line:
blog.AUTHORS = authors;
I did:
blog.attributes.splice(5, 0, 'AUTHORS');
I am not a clever man.