I am working on a horse racing application and I'm trying to utilize STI to model a horse's connections. A horse's connections is comprised of his owner, trainer and jockey. Over time, connections can change for a variety of reasons:
The horse is sold to another owner
The owner switches trainers or jockey
The horse is claimed by a new owner
As it stands now, I have model this with the following tables:
horses
connections (join table)
stakeholders (stakeholder has three sub classes: jockey, trainer & owner)
Here are my clases and associations:
    class Horse < ActiveRecord::Base
    has_one :connection
    has_one :owner_stakeholder, :through => :connection
    has_one :jockey_stakeholder, :through => :connection
    has_one :trainer_stakeholder, :through => :connection
end
    class Connection < ActiveRecord::Base
    belongs_to :horse
    belongs_to :owner_stakeholder
    belongs_to :jockey_stakeholder
    belongs_to :trainer_stakeholder
end
class Stakeholder < ActiveRecord::Base
    has_many :connections
    has_many :horses, :through => :connections
end
class Owner < Stakeholder
  # Owner specific code goes here.
end
class Jockey < Stakeholder
  # Jockey specific code goes here.
end
class Trainer < Stakeholder
  # Trainer specific code goes here.
end
One the database end, I have inserted a Type column in the connections table. 
Have I modeled this correctly. Is there a better/more elegant approach.  Thanks in advance for you feedback. 
Jim