1. INTRODUCTION

2. DATA  
2.1. The Cluster Sample  
2.2. WFC3-IR and IRAC Data  
2.3. Ancillary Data

3. SOURCE EXTRACTION AND MEASUREMENTS  
3.1. Source Extraction and Photometry  
3.2. Profile Modeling  
3.3. Notable Sources  
3.4. Stacking

4. ANALYSIS AND DISCUSSION  
4.1. Photometric Redshift  
4.2. Lens Models and Magnification  
4.3. Statistics of Physical Properties  
4.4. Resolved Stellar Continuum  
4.5. Number Density of $H$-faint Sources  
4.6. Contribution to the CSFRD and SMF

5. SUMMARY