Preheat the oven to 350°F. Grease two standard loaf pans and with parchment paper line the bottoms.
With an electric mixer, cream butter and sugar until pale yellow in color.
Add eggs one at a time, then lemon zest and juice.
The mixture should be thoroughly blended and thick. Mix dry ingredients thoroughly in a separate bowl and then add to the wet mixture a little at a time.
After all is thoroughly blended, divide between the two loaf pans.
Bake for 45 – 60 minutes, or until a toothpick comes clean (test in area of "split" on loaf tops).
Remove from the pan while still warm, remove paper from bottoms.