This is an old post but I didn't see it before now. How is it going? I think it's great that you are going to provide breastmilk to your 14 month old! That's how old my daughter is now and she really really loves her Momma's Milk!

We picked up Helina at 10 months and she had been bottle fed since at least 1 month old. I started by holding her in the breastfeeding position to feed her her bottles. She resisted this sometimes as she was not used to always being held for feedings, but soon adjusted and enjoyed it, and let me hold the bottle. I then fed her topless when practical, with my breast and nipple against her cheek and corner of her mouth. When we got home I tried bathing with her and showing her the breast and expressing milk into her mouth. She never showed any interest in latching although she knows well where her milk comes from and will touch the nipple with her finger and then put her finger in her mouth. She has licked my nipple a couple of times but that's as close as we ever got to feeding at the breast. She graduated from the bottle at 12 months, drinks her bmilk from a sippy cup now and loves it. I still hold her for her morning feeding, but otherwise she is a big girl. I plan to continue pumping until I just can't stand it anymore. Who knows when that will be!
What I found key was lots of patience, and to go by my daughter's cues. I had to keep in mind that breastfeeding, while it is something I REALLY wanted to do, was truly for the baby, and up to the baby. As I realized that Helina wasn't ever going to nurse at the breast, I focused on how great it felt when she wanted my milk, made the sign for milk to me, let me hold her close for feedings, etc. I feel like we have a biological connection, part of me is now part of her, and that is an amazing feeling.
I wish you the best of luck. Please let me know how it's going.