Possible json format for a user document

Here is a possible json format for a user document to be used with MongoDB

{
    "_id" : ObjectID(),
    "member_number" : "RMN-1094-12",
    "member_info" : {
        "first_name" : "David",
        "middle_name" : "L",
        "last_name" : "Weiner",
        "suffix" : "",
        "email_address" : "robingallowglass@gmail.com",
        "phone_number" : "678-536-9244",
        "address_1" : "342 Drexel Ave",
        "address_2" : "",
        "city" : "Decatur",
        "state_province" : "GA",
        "postal_code" : "30030",
        "country" : "United States",
        "branch" : "RMN"
    },
    "rank" : {
        "current_rank" : {
            "grade" : "E7",
            "date_of_rank" : "2014-08-31"
        },
        "berevet_rank" : {
            "grade" : "O4",
            "date_of_rank" : "2014-09-03"
        }
    },
    "chapter" : {
        "chapter_name" : "HMS Gaheris",
        "chapter_id" : ObjectID(),
        "date_assigned" : "2014-09-03",
        "billet" : "CO"
    },
    "peerage_record" : [
        {
            "award_id" : "ogek",
            "award" : "Most Regal Order of Queen Elizabeth",
            "class" : "Knight",
            "lands" : "",
            "postnominal" : "KE",
            "date_awarded" : "2014-08-31"

        }
    ],
    "awards_record" : [
        {
            "award_id" : "ssd",
            "award" : "Space Service Deployment Ribbon",
            "date_awarded" : "2014-05-22"

        },
        {
            "award_id" : "afsm",
            "award" : "Armed Forces Service Medal",
            "date_awarded" : "2014-06-17"
        }
    ],
    "exam_record" : [
        {
            "exam_id" : "SIA-RMN-0001",
            "revision" : "B",
            "date_graded" : "2014-04-18",
            "grade" : 100
        },
        {
            "exam_id" : "SIA-RMN-0002",
            "revision" : "B",
            "date_graded" : "2014-05-06",
            "grade" : 90
        }
    ]
}