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About Us

The principals of Pleiades Software Development, Inc have been working on family data record linking projects for over 40 years.  Sue Dintelman and Tim Maness were part of the technical staff that created the Utah Population Database at the University of Utah in the early 1980's.  The UPDB, a genealogy of Utah, became the foundation of many genetics and demographic research projects and an updated version is still in use today.  

Since then PSD has built genealogies for several other bio-tech companies and health care organizations, the largest being over 80 million individuals.  PSD has been involved in dozens of record linking projects from reconstituting a single small village in  Italy from church baptism, marriage and death records to linking complete US and Canadian censuses.  PSD has extensive experience with all types of historical records, vital statistics records and medical records.  For more details about record linking and PSD record linking services go to We are always improving our ability to answer the question:  "Are these two records for the same person."  We are ready to help you with your project.

About Our Products and Services

GenMerge, the Genealogy Merge Utility

The record linking algorithms are the core of the GenMerge desktop utility.  Without needing any programing or technical experience genealogists have the tool they need to quickly and efficiently find and eliminate duplicates in their family data.  Because GenMerge always produces a new output file, the tool can be used over and over without concern for affecting the source data.   


GenMergeDB is for larger population reconstitution projects with too many records to process in memory.  GenMergeDB utilizes database system (MySQL, MS SQL Server, Oracle) to manage multiple source files, run and evaluate record linking runs and produce output in a variety of formats.  GenMergeDB may be licensed to run at the client site or may be used by PSD staff to complete a client job. 


ConvertToGed was developed to prepare data for record linking projects.  Often source data is transcribed from church records (baptisms, marriages, burials), from civil records (births, marriages, death certificates, census records), even property records that show some familial relationships.  These flat files can be processed and converted into linked family trees.  ConvertToGed consists of a file description component, which describes the fields available, and a mapping component that maps from the described fields to the standard GedCom tags for names, dates, places, events and relationships.  Because of its flexibility, ConvertToGed can save time and effort when needing to convert from one type of file format to the standard GedCom lineage linked family format.




PSD has extensive experience evaluating data, preparing data for record linking projects, running record linking jobs and producing the desired work product.   We can help you take most any kind of data and produce a lineage linked dataset.  Do you have census records, family history books, descendant charts?  We can help you convert those into standard GedCom file format to use with comercial family tree software for publication, use by your organization or family.  Contact us for an estimate for your job.

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