| bhid | household identification number |
| bpno | person number |
| blmarm | month of marriage |
| blmary | year of marriage |
| blmcoh | cohabited before marriage |
| blmcbm | month began cohabiting before marriage |
| blmcby | year began cohabiting before marriage |
| blmend | whether marriage ended |
| blmwwm | month widowed |
| blmwwy | year widowed |
| blmdvm | month divorced |
| blmdvy | year divorced |
| blmspm | month separated |
| blmspy | year separated |
| bmarno | marriage number |
| bmpno | id of current married partner |
| bmrmseq | sequence number of most recent marriage |
| blmary4 | year of marriage |
| blmcby4 | year began cohabiting: 4 digit |
| blmwwy4 | year widowed: 4 digit |
| blmdvy4 | year divorced: 4 digit |
| blmspy4 | year separated: 4 digit |
| pid | cross-wave person identifier |
| pidp | Cross-wave person identifier (UKHLS) |