Niall, I have a small farm set up that you're welcome to all the seeds and wheat you want. Just follow the north road until it ends, keep going north, and you'll find it shorty. If you reach my house on a hill or Funkytown, you've gone too far.
F3 will show you your coordinates. Rei minimap works great in 1.81, and I'm 99% sure it has a 1.9 update already published, too. Just google it.