Ancestry research requires more than just finding records; it requires establishing demonstrable family ties. A matching first or last name is not sufficient, as identical data can refer to different people, even within the same locality. Genealogical research is based on verified facts that are linked into a consistent chain of generations.

The main difficulty lies in the fact that archival data does not form a complete system. It is fragmented, varies in accuracy, and often requires interpretation. The key task is not to collect as much information as possible, but to select and link only that which can be confirmed and logically consistent. Each established connection must have a documentary basis (archival code: collection, inventory, file) and be supported by additional data. Only this approach allows us to avoid errors and build a reliable family tree.

Why one document is not enough
A single record does not confirm kinship, even if it matches key parameters. Historical data was recorded manually, so it contains variable spellings of surnames, inaccurate age estimates, and incomplete family information.

The key problem is coincidences (anthroponyms). Several people with the same name could live in a single locality. Without verification, such records can easily be mistaken for the correct person, leading to a distortion of the entire family tree.

Each piece of information found is assessed based on a combination of criteria:

• Family composition: the presence of matching names of brothers, sisters, or godparents.
• Age consistency: age consistency across different time periods (the margin of error in revisions was often 3-5 years).
• Location consistency: association with a specific parish or rural community.
• Class affiliation: the transition from peasants to townspeople or merchants must be documented.

Partial matches are not considered evidence. Only information that is consistent across several independent parameters is considered confirmed.

How the search is built: from modern times to the depths of centuries
The research begins with the most accurate data from the 20th century. At this stage, basic information is established: date of birth, parents' names, and place of residence. This data sets the direction for further research.

• Family Archives and Civil Registry Offices: Search for birth, marriage, and death certificates from the Soviet era. The most important sources here are house registers and household registers of village councils, which contain lists of residents by name, including dates of birth and family ties.
• Generational Links: Establishing links to the previous generation through records that directly indicate family relationships. As we delve into earlier periods (the 19th century), the number of direct references decreases. The search then enters the analytical phase, where data comparison and elimination of discrepancies are crucial.

Source basis of the pedigree
A reliable genealogy is formed by combining several types of documents:

• Parish registers: The primary source of information until 1917. Consists of three sections: birth records (indicating parents and godparents), marriage records (indicating guarantors/witnesses), and death records.
• Confession lists: Annual lists of church parishioners, listing the entire family with the age of each member. This is the best document for confirming family structure.
• Census tales: Materials from censuses of the taxable population (there were 10 censuses in total from 1719 to 1858). They allow us to trace family life over decades, recording moves, conscription, and the division of property.

Checking family ties and accounting for changes
Confirmation of kinship is based on the simultaneous matching of several parameters. It's not individual facts that are analyzed, but rather their combination: matching parents and children, family recurrence in different sources, and matching place of residence.

Families are dynamic: new members are added, deaths are recorded, marriages occur, and relocations occur. Therefore, it's not a single record that is analyzed, but rather data from different periods (time slices). Comparing these slices allows us to clarify age, determine the sequence of events, and determine a person's fate. This also helps distinguish the desired family from others with similar characteristics.

Additional Data and Verification
After confirming the primary line, information that completes the picture is used:

• Recruitment lists and military service records: contain information about service and physical characteristics.
• Notarial deeds and inheritance cases: confirm property status.
• Lists of those disenfranchised and repressed: an important source of data for the first half of the 20th century, often containing detailed questionnaires.

This data enhances the reliability and completeness of the study. Common errors, such as using matches without verification, lead to the inclusion of "foreign" ancestors in the family tree. A correct approach requires consistent verification of each entry, data comparison, and the exclusion of questionable matches.

Conclusion: Genealogical research is about working with an evidence base. What matters is not the individual entry, but its consistency with other data. A family relationship is considered established only if it is supported by several independent parameters and logically fits into the overall family structure.