Antedating preposition 'following'

The OED has the preposition following from 1947. I've found this :

• Following the order observed in the report, the first branch of study noticed is Engineering, in its two branches, military and civil. 1826

I don't see much in between though. Are there other examples of this preposition before 1900?

It’s at least debatable whether following in the 1826 example is a preposition. The OED’s 1947 citation is:

The prologue was written by the company following an incident witnessed by them during anti-Jewish demonstrations following the hanging of two British soldiers in Palestine.

In that example, following can be replaced by at least one of the three terms provided in the OED’s definition: as a sequel to, in succession to and after. Can we, equally, instead of 'Following the order observed in the report', say 'As a sequel to / in succession to / after the order observed in the report'? Possibly, but that may not give the meaning intended in the original. What the writer probably meant was 'Following the order observed in the report, the first branch of study we notice is Engineering . . .' If so, the way it has come out has following as the -ing form of the verb follow. As such it is a dangling participle, wrongly hooked up to the first branch of study.

Answering your question, I can say that in your example it's not a preposition but a participle. (As Barrie England noticed, it's a dangling participle, which is a grammatical solecism: but the answer remains the same.)

EDIT: It's hardly ever clear when a word, commonly used as a participle, is extended to the point of becoming a preposition; if the OED believes following as a preposition dates only from c1947, I would be loth to disagree. My belief is strengthened by the fact that your apparent counterexample is in fact not a preposition at all. (Apologies if the brevity of my answer failed to convey the meaning.)