Complex sentence: Unwilling to wait, some Southern Rhodesian would-be soldiers made their own way to England to join the British Army directly, as individuals or in groups--by the end of October 1914, about 300 were on their way.
Split into simpler sentences: Unwilling to wait, some Southern Rhodesian would-be soldiers made their own way to England to join the British Army directly, as individuals or in groups. By the end of October 1914, about 300 were on their way.