During his two years of service, Elder Croft will be assigned to different areas in the mission. To send him a letter, always mail to the mission home address below and they will forward to him wherever he is.
Elder Derek Croft
Washington DC North Mission
11700 Falls Rd
Potomac, MD 20854-2823
Thanks for writing to him!
There is another option that some people find more convenient, and that is to use a missionary mailing service. One example is DearElder.com With these services you create an account and deposit money. You can then write a letter online, and the service will print it out, put it in an envelope, and mail it to the mission home. You will be charged for the cost of postage.