following demo - I
Added scaffolds. Commands in comments.

rails generate scaffold person first_name:string last_name:string
DOB:date taken_country:string taken_city:string
citizenship_status:string mobile:text current_address:integer

rails generate scaffold address person:integer street_1:string
street_2:string city:string region:string code:string country:string

rails generate scaffold descriptive_address person:integer
country:string

rails generate scaffold geocode_address person:integer lat:string
long:string

rails generate scaffold contact person:integer first_name:string
last_name:string mobile:text landline:text email:text relationship:text
trusted:boolean authorized:boolean