A KNIL infantry squad is not a tidy, doctrinal construct. It is a small working group, usually eight to twelve men under a corporal, sometimes less depending on losses and circumstance. It is not broken into formal sub sections. It exists as a single body, held together by proximity and familiarity rather than structure on paper.
Most of the men are riflemen. They carry bolt action rifles, commonly Mannlicher or Mauser types, with ammunition distributed across bandoliers and pouches as available. There is no real uniformity in how this is carried. What matters is that each man has enough to remain effective for a short fight. Pistols are limited and tend to sit with NCOs or particular individuals rather than being widely issued.
Within that group there is usually a Lewis gun. It does not define the squad, but it is there, and it adds weight when it is brought into use. The gun is handled by a gunner and an assistant, sometimes with another man carrying additional magazines. The pans are spread across the squad rather than concentrated in one place, which reflects the simple reality of supply. The weapon is part of the group, not something that stands apart from it.
Other equipment is limited and uneven. A few grenades may be present, but not in large numbers. Extra ammunition, tools, or specialist items are carried when available, but there is nothing like a fixed allocation across every squad. What you see is what the unit has managed to retain and distribute.
Movement is not always on foot. Where vehicles are available, squads may be lifted forward or repositioned using light armoured transports. The Overvalwagen is a good example of this in KNIL service. It is an improvised armoured vehicle, used to move men under some protection rather than to fight as a system in its own right. A squad carried this way remains the same body once it gets out. The vehicle is a means of getting there, nothing more.
Uniform and equipment reflect the nature of the force. European, Indo European, and indigenous soldiers serve together, and the mix shows in dress and kit. There is variation in webbing, packs, and personal items. Standardisation is secondary to function.
So what you have is a rifle squad with a light machine gun included, held together by what is available rather than what is prescribed. It is simple, practical, and shaped by constraint. The Lewis gun is part of it, the Overvalwagen may move it, but the squad itself remains a small group of men carrying what they have and working as a single unit.
More KNIL in the pipeline.