AWM4, Sub-class 9/3 - 1/1st Staffordshire Yeomanry, ANZAC Mounted Division

First World War Diaries - AWM4, Class 9 Cavalry. Archival series AWM4 comprises the diaries of the Australian Imperial Force (AIF) created during the First World War. The war diaries generally consist of war diary or intelligence summary sheets located at the beginning of each diary which record the date of each entry, the unit's location, a summary of events and any remarks or references to appendices. The appendices, which make up the larger part of each diary, may include orders, despatches, instructions, reports, telegrams, and decisions taken; daily situation reports; staff duties; accounts of operations; changes in establishment or strength; and a summary of information received. The overall quality of the diaries can be variable and usually reflects the attitude of the unit's commanding office, and the skill and conscientiousness of the individual charged with compiling it. Numbering System: This series has a three part numbering system: the first number represents the broadest category, such as arm, service or corps a unit belonged to; the second number represents the particular unit; and the third number is a chronological identifier that represents the month and year for each diary.

第一次世界大战日记——AWM4档案系列，第9骑兵类。
档案系列AWM4收录了第一次世界大战期间澳大利亚帝国部队（Australian Imperial Force, AIF）留存的战地日记。此类战地日记通常以作战日志或情报摘要页作为开篇，该页会记录每篇日志的日期、所属部队的部署位置、事件概要，以及针对附录的备注或引用说明。
作为单篇日记核心组成部分的附录，可涵盖各类命令、战报、指令、报告、电报及已作出的决策；每日态势报告；参谋部勤务记录；作战行动记述；编制或兵力变动情况；以及所获情报汇总。
此类日记的整体质量参差不齐，通常取决于部队指挥军官的履职态度，以及负责编纂日志人员的专业能力与尽责程度。
编号体系：本档案系列采用三段式编号规则：第一段数字代表最宽泛的分类维度，如部队所属的兵种、勤务兵种或军团；第二段数字对应具体作战单位；第三段数字为时间序列标识，用于标注单篇日记对应的月份与年份。