diff --git a/api/src/main/java/org/fairdatapipeline/api/Object_component_read.java b/api/src/main/java/org/fairdatapipeline/api/Object_component_read.java
index 62a7b55..ca21c2b 100644
--- a/api/src/main/java/org/fairdatapipeline/api/Object_component_read.java
+++ b/api/src/main/java/org/fairdatapipeline/api/Object_component_read.java
@@ -7,6 +7,8 @@
 import org.fairdatapipeline.distribution.ImmutableDistribution;
 import org.fairdatapipeline.estimate.ImmutableEstimate;
 import org.fairdatapipeline.file.CleanableFileChannel;
+import org.fairdatapipeline.parameters.ImmutableBoolList;
+import org.fairdatapipeline.parameters.ImmutableStringList;
 import org.fairdatapipeline.parameters.ReadComponent;
 import org.fairdatapipeline.samples.ImmutableSamples;
 
@@ -109,6 +111,45 @@ public Distribution readDistribution() {
     return ((ImmutableDistribution) data).getDistribution();
   }
 
+  /**
+   * read the Bools that were stored as this component in a TOML file.
+   *
+   * @return the Bools object
+   */
+  public List<Boolean> readBools() {
+    ReadComponent data;
+    try (CleanableFileChannel fileChannel = this.getFileChannel()) {
+      data = this.dp.coderun.parameterDataReader.read(fileChannel, this.component_name);
+    } catch (IOException e) {
+      throw (new RuntimeException("readBools() -- IOException trying to read from file.", e));
+    }
+    if (!(data instanceof ImmutableBoolList)) {
+      throw (new RuntimeException(
+              "readBools() -- this objComponent (" + this.component_name + ") is not a BoolList"));
+    }
+    return ((ImmutableBoolList) data).getBools();
+  }
+
+  /**
+   * read the Strings that were stored as this component in a TOML file.
+   *
+   * @return the Strings object
+   */
+  public List<String> readStrings() {
+    ReadComponent data;
+    try (CleanableFileChannel fileChannel = this.getFileChannel()) {
+      data = this.dp.coderun.parameterDataReader.read(fileChannel, this.component_name);
+    } catch (IOException e) {
+      throw (new RuntimeException("readStrings() -- IOException trying to read from file.", e));
+    }
+    if (!(data instanceof ImmutableStringList)) {
+      throw (new RuntimeException(
+              "readStrings() -- this objComponent (" + this.component_name + ") is not a StringList"));
+    }
+    return ((ImmutableStringList) data).getStrings();
+  }
+
+
   /**
    * read the Samples that were stored as this component in a TOML file.
    *
diff --git a/api/src/main/java/org/fairdatapipeline/api/Object_component_write.java b/api/src/main/java/org/fairdatapipeline/api/Object_component_write.java
index 327068f..4b988d0 100644
--- a/api/src/main/java/org/fairdatapipeline/api/Object_component_write.java
+++ b/api/src/main/java/org/fairdatapipeline/api/Object_component_write.java
@@ -7,6 +7,8 @@
 import org.fairdatapipeline.distribution.Distribution;
 import org.fairdatapipeline.estimate.ImmutableEstimate;
 import org.fairdatapipeline.file.CleanableFileChannel;
+import org.fairdatapipeline.parameters.BoolList;
+import org.fairdatapipeline.parameters.StringList;
 import org.fairdatapipeline.samples.Samples;
 
 /**
@@ -96,6 +98,42 @@ public void writeDistribution(Distribution distribution) {
     this.been_used = true;
   }
 
+  /**
+   * write a BoolList, as this named component in the data product.
+   *
+   * @param bools the Booleans to write
+   */
+  public void writeBools(BoolList bools) {
+    if (this.been_used) {
+      throw (new RuntimeException("obj component already written"));
+    }
+    try (CleanableFileChannel fileChannel = this.getFileChannel()) {
+      this.dp.coderun.parameterDataWriter.write(fileChannel, this.component_name, bools);
+    } catch (IOException e) {
+      throw (new RuntimeException(
+              "writeBools() -- IOException trying to write to file.", e));
+    }
+    this.been_used = true;
+  }
+
+  /**
+   * write a BoolList, as this named component in the data product.
+   *
+   * @param strings the Strings to write
+   */
+  public void writeStrings(StringList strings) {
+    if (this.been_used) {
+      throw (new RuntimeException("obj component already written"));
+    }
+    try (CleanableFileChannel fileChannel = this.getFileChannel()) {
+      this.dp.coderun.parameterDataWriter.write(fileChannel, this.component_name, strings);
+    } catch (IOException e) {
+      throw (new RuntimeException(
+              "writeStrings() -- IOException trying to write to file.", e));
+    }
+    this.been_used = true;
+  }
+
   /**
    * write Samples, as this named component in the data product.
    *