Yes. A mission book can be built around letters, even if you have only a handful of photos. Use the pictures you have where they add context; you do not need one for every week.
Start with the letters. Read a few in order and note the places, people, and routines they already describe. Then choose photos that help a reader picture those details.
Give each photo a purpose
One photo of an apartment might add context to several letters about life there. A picture of a companion or a familiar street can help readers follow the story without filling every page.
Make a short list of the photos you have and what each shows. Check uncertain names and dates with the missionary. If you cannot confirm a date, use a broader description instead of guessing.
Ask for originals, then set a stopping point
The missionary or a relative may have original files that never reached the family inbox. Ask about a few specific gaps, such as a first apartment or a companion mentioned in the letters. Let each person decide what they are comfortable sharing.
A small collection of meaningful photos is enough. Do not use an unrelated landscape or stock portrait as if it shows the actual mission.
Let the letters carry the story
Keep a letter because it matters, not because it has a matching photo. A short update can sit beside a longer one. If readers need context, ask the writer whether they want to add a note or a later reflection, clearly labeled as such. These reflection questions can help.
You can also group letters by transfer or add a simple section page to help readers follow the timeline. See how to organize letters by transfer and companion.
Review your own preview
After setting up the book, look at several consecutive text-heavy pages, a long letter, and a section with a photo. Check that the text is readable, the order makes sense, and each image is correctly identified. Letters Home uses predetermined layouts, so check the preview rather than assuming you can place every element yourself.
You can upload saved emails for free, review and edit them, and preview a book before deciding whether to print. Printed books are a separate purchase; see current pricing. Ask the missionary for permission before using their letters or photos.