Throughout the “Lazarus Long / Howard Families” stories by Robert A. Heinlein, there are 2 characters that are pivotal in their own way. The first and foremost is Lazarus Long, born 1912 and still living in 4001; the oldest man alive, Senior of the Howard Families. The other and probably more pivotal in her genealogy is Maureen Johnson; mother of Lazarus Long.
Maybe this chart will explain Maureen’s place in history:
+--------------------+ +--------------------+
| Asa Edward JOHNSON | | Rose Altheda McFEE |
| b 1813 +- m 1831 + b. 1814 |
| d. 1918 | + | d. 1918 |
+--------------------+ | +--------------------+
+-+
|
+----------+---+ +----------------+
| Ira JOHNSON | | Adele PFEIFFER |
| b 1852 | | m 1876 |
| rescued from UK 1941 | |
+------+-------+ +------+---------+
| |
+-------+--------------------------+
|
+-------+---------+ +---------------+
§| Maureen JOHNSON | | Brian SMITH |
| b. 4 July 1882 |-- m. 1899 ---- | b. 1877 |
| still living |-- div 1946 --- | d. 1996 |
+---------+-------+ +---------------+
+-----------------------------------+----+----------------------------+-----------------+------->
| | | |
+-----+-------+ +------+------+ at least 8 more |
| Nancy SMITH | +--------------------+ | Carol SMITH | +-------------+ but not important |
| b. 1899 +-+ Jonathan WEATHERAL | | b. 1902 +-+ Rod Jenkins | |
| | | m. 1918 | | + | d. 1955 | +-----------+-----------+
+-----+-------+ +--------------------+ +-------------+ +-------------+ | Woodrow Wilson SMITH | +----------------+
| §| b. 11 Nov 1912 | | Dora BRANDON |
+---+---------------+ +-------------+------------------+ AKA Lazarus LONG +---+ b. 3050 |
| Roberta WEATHERAL | +-----------------+ +-|-------+ | | Senior of Howards | | m. 3070 |
| b. 25 Dec 1918 +--+ Zachary BARSTOW | | Heather | +--+-------------+ +-----------------------+ | d. 3150 |
| | | m. 1934 | | m. 1930 | | Wendy CAMPBELL | +-------+--------+
+---------+---------+ +-----------------+ +---------+ | m. 2133 | |
| +-------+--------+ +---------------+---+
+---------+---------+ | +-----+------+ |
| Anne BARSTOW | +------------------+ +-----+-----------------------+ | Zack SMITH | at least 8
| b 2 Nov 1935 +-+ Eugene HARDY | | Richard Colin Campbell AMES | | b 3070 | others
+---------+---------+ +------------------+ | b. 2133 | +------------+
| +-----------------------------+
+-------------------+
| Nancy Jane HARDY |
| b. 22 June 1952 +------- ? FOOTE
+--------+----------+
|
|
+-------+--------------+
| Justin FOOTE |
| b. 31 Dec 2000 |
| “first of that name” |
+--------+-------------+
|