Follow this link, it will ask you where you are applying from and will show you instructions and all forms you need to complete for your visa office. When I applied for my WP I completed a form named family information IMM5707, but please follow your visa office instructions.@TheNorms could you please guide which form (imm-mention numbers please) did you select for your spouse and daughter when filing for WP application? Thank you!
http://www.cic.gc.ca/english/information/applications/atlantic-work.asp